diff --git a/en/application-dev/js-reference/apis/js-apis-call.md b/en/application-dev/js-reference/apis/js-apis-call.md
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+# Call
+
+>**Note:**
+>
+>- The APIs of this module are supported since API version 6.
+>
+>- APIs marked with <sup>7+</sup> are supported since API version 7.
+
+
+## Modules to Import
+
+```
+import call from '@ohos.telephony.call';
+```
+
+## call.dial<a name=call.dial-callback1></a>
+
+dial\(phoneNumber: string, callback: AsyncCallback<boolean\>\): void
+
+Initiates a call. This function uses an asynchronous callback to return the execution result.
+
+Before using this API, you must declare the **ohos.permission.PLACE\_CALL** permission (a system permission).
+
+- Parameters
+  
+  | Name| Type| Mandatory| Description|
+  | -------- | -------- | -------- | -------- |
+  | phoneNumber | string | Yes|Phone number.|
+  | callback |AsyncCallback&lt;boolean&gt;|Yes|Callback used to return the result.<br/> - **true**: success <br/> -**false**: failure|
+  
+-   Example
+
+    ```
+    call.dial("138xxxxxxxx", (err, data) => {
+        console.log(`callback: err->${JSON.stringify(err)}, data->${JSON.stringify(data)}`);
+    });
+    ```
+
+
+## call.dial<a name=call.dial-callback2></a>
+
+dial\(phoneNumber: string, options: DialOptions, callback: AsyncCallback<boolean\>\): void
+
+Initiates a call. You can set call options as needed. This function uses an asynchronous callback to return the execution result.
+
+Before using this API, you must declare the **ohos.permission.PLACE\_CALL** permission (a system permission).
+
+- Parameters
+
+  | Parameter| Type| Mandatory| Description|
+  | ----------- | ---------------------------- | ---- | ------------------------------------------------- |
+  | phoneNumber | string                       | Yes| Phone number.|
+  | options     | DialOptions                  | Yes| Call options. For details, see [DialOptions](#DialOptions).|
+  | callback    | AsyncCallback&lt;boolean&gt; | Yes| Callback used to return the result.<br/> - **true**: success <br/> -**false**: failure|
+
+
+-   Example
+
+    ```
+    call.dial("138xxxxxxxx", {
+        extras: false
+    }, (err, data) => {
+        console.log(`callback: err->${JSON.stringify(err)}, data->${JSON.stringify(data)}`);
+    });
+    ```
+
+
+## call.dial<a name=call.dial-promise></a>
+
+dial\(phoneNumber: string, options?: DialOptions\): Promise<boolean\>
+
+Initiates a call. You can set call options as needed. This function uses a promise to return the execution result.
+
+Before using this API, you must declare the **ohos.permission.PLACE\_CALL** permission (a system permission).
+
+- Parameters
+
+  | Name| Type| Mandatory| Description|
+  | ----------- | ----------- | ---- | ------------------------------------------- |
+  | phoneNumber | string      | Yes| Phone number.|
+  | options     | DialOptions | Yes| Call options. For details, see [DialOptions](#DialOptions).|
+
+- Return values
+
+  | Type| Description|
+  | ---------------------- | --------------------------------- |
+  | Promise&lt;boolean&gt; | Promise used to return the result.|
+
+-   Example
+
+    ```
+    let promise = call.dial("138xxxxxxxx", {
+        extras: false
+    });
+    promise.then(data => {
+        console.log(`dial success, promise: data->${JSON.stringify(data)}`);
+    }).catch(err => {
+        console.error(`dial fail, promise: err->${JSON.stringify(err)}`);
+    });
+    ```
+
+## call.hasCall<a name=call.hasCall-callback></a>
+
+hasCall\(callback: AsyncCallback<boolean\>\): void
+
+Checks whether a call is in progress. This function uses an asynchronous callback to return the result.
+
+- Parameters
+
+  | Name| Type| Mandatory| Description|
+  | -------- | ---------------------------- | ---- | ------------------------------------------------------------ |
+  | callback | AsyncCallback&lt;boolean&gt; | Yes| Callback used to return the result: <br/> - **true**: A call is in progress. <br/> - **false**: No call is in progress. |
+
+-   Example
+
+    ```
+    call.hasCall((err, data) => {
+        console.log(`callback: err->${JSON.stringify(err)}, data->${JSON.stringify(data)}`);
+    });
+    ```
+
+
+## call.hasCall<a name=call.hasCall-promise></a>
+
+hasCall\(\): Promise<boolean\>
+
+Checks whether a call is in progress. This function uses a promise to return the result.
+
+- Return values
+
+  | Type| Description|
+  | ---------------------- | --------------------------------------- |
+  | Promise&lt;boolean&gt; | Promise used to return the result.|
+
+-   Example
+
+    ```
+    let promise = call.hasCall();
+    promise.then(data => {
+        console.log(`hasCall success, promise: data->${JSON.stringify(data)}`);
+    }).catch(err => {
+        console.error(`hasCall fail, promise: err->${JSON.stringify(err)}`);
+    });
+    ```
+
+
+## call.getCallState<a name=call.getCallState-callback></a>
+
+getCallState\(callback: AsyncCallback<CallState\>\): void
+
+Obtains the call status. This function uses an asynchronous callback to return the result.
+
+- Parameters
+
+  | Name| Type| Mandatory| Description|
+  | -------- | -------------------------------------------- | ---- | ------------------------------------ |
+  | callback | AsyncCallback&lt;[CallState](#CallState)&gt; | Yes| Callback used to return the result.|
+
+-   Example
+
+    ```
+    call.getCallState((err, data) => {
+        console.log(`callback: err->${JSON.stringify(err)}, data->${JSON.stringify(data)}`);
+    });
+    ```
+
+
+## call.getCallState<a name="call.getCallState-promise"></a>
+
+getCallState\(\): Promise<CallState\>
+
+Obtains the call status. This function uses a promise to return the result.
+
+- Return values
+
+  | Type| Description|
+  | -------------------------------------- | ----------------------------------------- |
+  | Promise&lt;[CallState](#CallState)&gt; | Promise used to return the result.|
+
+-   Example
+
+    ```
+    let promise = call.getCallState();
+    promise.then(data => {
+        console.log(`getCallState success, promise: data->${JSON.stringify(data)}`);
+    }).catch(err => {
+        console.error(`getCallState fail, promise: err->${JSON.stringify(err)}`);
+    });
+    ```
+
+## call.isEmergencyPhoneNumber<sup>7+</sup><a name=call.isEmergencyPhoneNumber-callback1></a>
+
+isEmergencyPhoneNumber\(phoneNumber: string, callback: AsyncCallback<boolean\>\): void
+
+Checks whether the call number is an emergency number. This function uses an asynchronous callback to return the result.
+
+- Parameters
+
+  | Name| Type| Mandatory| Description|
+  | ----------- | ---------------------------- | ---- | ------------------------------------------------------------ |
+  | phoneNumber | string                       | Yes| Phone number.|
+  | callback    | AsyncCallback&lt;boolean&gt; | Yes| Callback used to return the result.<br/> - **true**: The called number is an emergency number. <br/> - **false**: The called number is not an emergency number.|
+
+-   Example
+
+    ```
+    call.isEmergencyPhoneNumber("138xxxxxxxx", (err, data) => {
+        console.log(`callback: err->${JSON.stringify(err)}, data->${JSON.stringify(data)}`);
+    });
+    ```
+
+
+## call.isEmergencyPhoneNumber<sup>7+</sup><a name=call.isEmergencyPhoneNumber-callback2></a>
+
+isEmergencyPhoneNumber\(phoneNumber: string, options: EmergencyNumberOptions, callback: AsyncCallback<boolean\>\): void
+
+Checks whether the call number is an emergency number. This function uses an asynchronous callback to return the result.
+
+- Parameters
+
+    | Name| Type| Mandatory| Description|
+    | ----------- | ---------------------------- | ---- | ------------------------------------------------------------ |
+    | phoneNumber | string                       | Yes| Phone number.|
+    | options     | EmergencyNumberOptions       | Yes| Emergency number options defined in [EmergencyNumberOptions](#EmergencyNumberOptions).|
+    | callback    | AsyncCallback&lt;boolean&gt; | Yes| Callback used to return the result.<br/> - **true**: The called number is an emergency number. <br/> - **false**: The called number is not an emergency number.|
+
+-   Example
+
+    ```
+    call.isEmergencyPhoneNumber("112", {slotId: 1}, (err, value) => {
+        console.log(`callback: err->${JSON.stringify(err)}, data->${JSON.stringify(data)}`);
+    });
+    ```
+
+
+## call.isEmergencyPhoneNumber<sup>7+</sup><a name=call.isEmergencyPhoneNumber-promise></a>
+
+isEmergencyPhoneNumber\(phoneNumber: string, options?: EmergencyNumberOptions\): Promise<boolean\>
+
+Checks whether the call number is an emergency number. This function uses a promise to return the result.
+
+- Parameters
+
+  | Name| Type| Mandatory| Description|
+  | ----------- | ---------------------- | ---- | ------------------------------------------------------------ |
+  | phoneNumber | string                 | Yes| Phone number.|
+  | options     | EmergencyNumberOptions | Yes| Emergency number options defined in [EmergencyNumberOptions](#EmergencyNumberOptions).|
+
+- Return values
+
+    | Type| Description|
+    | ---------------------- | --------------------------------------------------- |
+    | Promise&lt;boolean&gt; | Promise used to return the result.|
+
+-   Example
+
+    ```
+    let promise = call.isEmergencyPhoneNumber("138xxxxxxxx", {slotId: 1});
+    promise.then(data => {
+        console.log(`isEmergencyPhoneNumber success, promise: data->${JSON.stringify(data)}`);
+    }).catch(err => {
+        console.error(`isEmergencyPhoneNumber fail, promise: err->${JSON.stringify(err)}`);
+    });
+    ```
+
+## call.formatPhoneNumber<sup>7+</sup><a name=call.formatPhoneNumber-callback1></a>
+
+formatPhoneNumber\(phoneNumber: string, callback: AsyncCallback<string\>\): void
+
+Formats a phone number. This function uses an asynchronous callback to return the result.
+
+- Parameters
+
+  | Name| Type| Mandatory| Description|
+  | ----------- | --------------------------- | ---- | ------------------------------------ |
+  | phoneNumber | string                      | Yes| Phone number.|
+  | callback    | AsyncCallback&lt;string&gt; | Yes| Callback used to return the result.|
+
+-   Example
+
+    ```
+    call.formatPhoneNumber("138xxxxxxxx", (err, data) => {
+        console.log(`callback: err->${JSON.stringify(err)}, data->${JSON.stringify(data)}`);
+    });
+    ```
+
+
+## call.formatPhoneNumber<sup>7+</sup><a name=call.formatPhoneNumber-callback2></a>
+
+formatPhoneNumber\(phoneNumber: string, options: NumberFormatOptions, callback: AsyncCallback<string\>\): void
+
+Formats a phone number based on specified formatting options. This function uses an asynchronous callback to return the result.
+
+- Parameters
+
+  | Name| Type| Mandatory| Description|
+  | ----------- | --------------------------- | ---- | ------------------------------------------------------------ |
+  | phoneNumber | string                      | Yes| Phone number.|
+  | options     | NumberFormatOptions         | Yes| Number formatting options defined in [NumberFormatOptions](#NumberFormatOptions).|
+  | callback    | AsyncCallback&lt;string&gt; | Yes| Callback used to return the result.|
+
+-   Example
+
+    ```
+    call.formatPhoneNumber("138xxxxxxxx",{
+        countryCode: "CN"
+    }, (err, data) => {
+        console.log(`callback: err->${JSON.stringify(err)}, data->${JSON.stringify(data)}`);
+    });
+    ```
+
+
+## call.formatPhoneNumber<sup>7+</sup><a name=call.formatPhoneNumber-promise></a>
+
+formatPhoneNumber\(phoneNumber: string, options?: NumberFormatOptions\): Promise<string\>
+
+Formats a phone number based on specified formatting options. This function uses a promise to return the result.
+
+- Parameters
+
+  | Name| Type| Mandatory| Description|
+  | ----------- | ------------------- | ---- | ------------------------------------------------------------ |
+  | phoneNumber | string              | Yes| Phone number.|
+  | options     | NumberFormatOptions | Yes| Number formatting options defined in [NumberFormatOptions](#NumberFormatOptions).|
+
+- Return values
+
+  | Type| Description|
+  | --------------------- | ------------------------------------------- |
+  | Promise&lt;string&gt; | Promise used to return the result.|
+
+-   Example
+
+    ```
+    let promise = call.formatPhoneNumber("138xxxxxxxx", {
+        countryCode: "CN"
+    });
+    promise.then(data => {
+        console.log(`formatPhoneNumber success, promise: data->${JSON.stringify(data)}`);
+    }).catch(err => {
+        console.error(`formatPhoneNumber fail, promise: err->${JSON.stringify(err)}`);
+    });
+    ```
+
+## call.formatPhoneNumberToE164<sup>7+</sup><a name=call.formatPhoneNumberToE164-callback></a>
+
+formatPhoneNumberToE164\(phoneNumber: string, countryCode: string, callback: AsyncCallback<string\>\): void
+
+Converts a phone number into the E.164 format. This function uses an asynchronous callback to return the result.
+
+The phone number must match the specified country code. For example, for a China phone number, the country code must be **CN**. Otherwise, **null** will be returned.
+
+All country codes are supported.
+
+- Parameters
+
+  | Name| Type| Mandatory| Description|
+  | ----------- | --------------------------- | ---- | ----------------------------------------------------- |
+  | phoneNumber | string                      | Yes| Phone number.|
+  | countryCode | string                      | Yes| Country code, for example, **CN** (China). All country codes are supported.|
+  | callback    | AsyncCallback&lt;string&gt; | Yes| Callback used to return the result.|
+
+-   Example
+
+    ```
+    call.formatPhoneNumberToE164("138xxxxxxxx",{
+        countryCode: "CN"
+    }, (err, data) => {
+        console.log(`callback: err->${JSON.stringify(err)}, data->${JSON.stringify(data)}`);
+    });
+    ```
+
+
+## call.formatPhoneNumberToE164<sup>7+</sup><a name=call.formatPhoneNumberToE164-promise></a>
+
+formatPhoneNumberToE164\(phoneNumber: string, countryCode: string\): Promise<string\>
+
+Converts a phone number into the E.164 format. This function uses a promise to return the result.
+
+The phone number must match the specified country code. For example, for a China phone number, the country code must be **CN**. Otherwise, **null** will be returned.
+
+All country codes are supported.
+
+- Parameters
+
+  | Name| Type| Mandatory| Description|
+  | ----------- | ------ | ---- | ---------------------------------------- |
+  | phoneNumber | string | Yes| Phone number.|
+  | countryCode | string | Yes| Country code, for example, **CN** (China). All country codes are supported.|
+
+- Return values
+
+  | Type| Description|
+  | --------------------- | ------------------------------------------------------------ |
+  | Promise&lt;string&gt; | Promise used to return the result.|
+
+-   Example
+
+    ```
+    let promise = call.formatPhoneNumberToE164("138xxxxxxxx", {
+        countryCode: "CN"
+    });
+    promise.then(data => {
+        console.log(`formatPhoneNumberToE164 success, promise: data->${JSON.stringify(data)}`);
+    }).catch(err => {
+        console.error(`formatPhoneNumberToE164 fail, promise: err->${JSON.stringify(err)}`);
+    });
+    ```
+
+## DialOptions<a name=DialOptions></a>
+
+Provides an option for determining whether a call is a video call.
+| Name| Type| Mandatory| Description|
+| -------- | -------- | -------- | -------- |
+| extras | boolean | No|Indication of a video call. The options are as follows: <br/> - **true**: video call <br/> - **false**: voice call|
+
+## CallState<a name=CallState></a>
+
+Enumerates call states.
+| Variable| Value| Description|
+| -------- | -------- | -------- |
+| CALL_STATE_UNKNOWN | -1 | The call status fails to be obtained and is unknown.|
+| CALL_STATE_IDLE | 0 | No call is in progress.|
+| CALL_STATE_RINGING | 1 | The call is in the ringing or waiting state.|
+| CALL_STATE_OFFHOOK | 2 | At least one call is in dialing, active, or on hold, and no new incoming call is ringing or waiting.|
+
+## EmergencyNumberOptions<sup>7+</sup><a name=EmergencyNumberOptions></a>
+
+Provides an option for determining whether a number is an emergency number for the SIM card in the specified slot.
+| Name| Type| Mandatory| Description|
+| -------- | -------- | -------- | -------- |
+| slotId | number | No|SIM card slot ID.<br/> - **0**: slot 1 <br/> - **1**: slot 2|
+
+## NumberFormatOptions<sup>7+</sup><a name=NumberFormatOptions></a>
+
+Provides an option for number formatting.
+| Name| Type| Mandatory| Description|
+| -------- | -------- | -------- | -------- |
+| countryCode | string | No|Country code, for example, **CN** (China). All country codes are supported. The default value is **CN**.|
diff --git a/en/application-dev/js-reference/apis/js-apis-radio.md b/en/application-dev/js-reference/apis/js-apis-radio.md
new file mode 100644
index 0000000000000000000000000000000000000000..69cac33509d195b8a3160f72b127a8ea17ac448c
--- /dev/null
+++ b/en/application-dev/js-reference/apis/js-apis-radio.md
@@ -0,0 +1,460 @@
+# Radio
+
+>**Note:**
+>
+>- The APIs of this module are supported since API version 6.
+>- APIs marked with <sup>7+</sup> are supported since API version 7.
+
+
+## Modules to Import
+
+```
+import radio from '@ohos.telephony.radio'
+```
+
+## radio.getRadioTech<a name=radio.getRadioTech-callback></a>
+
+getRadioTech\(slotId: number, callback: AsyncCallback<\{psRadioTech: RadioTechnology, csRadioTech: RadioTechnology\}\>\): void
+
+Obtains the radio access technologies (RATs) used by the CS and PS domains. This function uses an asynchronous callback to return the result.
+
+Before using this API, you must declare the **ohos.permission.GET\_NETWORK\_INFO** permission.
+
+- Parameters
+
+  | Name| Type| Mandatory| Description|
+  | -------- | ------------------------------------------------------------ | ---- | -------------------------------------- |
+  | slotId   | number                                                       | Yes| SIM card slot ID. The options are as follows: <br/> - **0**: slot 1<br/> - **1**: slot 2|
+  | callback | AsyncCallback\<{psRadioTech: [RadioTechnology](#RadioTechnology), csRadioTech:[RadioTechnology](#RadioTechnology)}\> | Yes| Callback used to return the result.|
+
+-   Example
+
+    ```
+    let slotId = 0;
+    radio.getRadioTech(slotId, (err, data) =>{ 
+        console.log(`callback: err->${JSON.stringify(err)}, data->${JSON.stringify(data)}`);
+    });
+    ```
+
+
+## radio.getRadioTech<a name=radio.getRadioTech-promise></a>
+
+getRadioTech\(slotId: number\): Promise<\{psRadioTech: RadioTechnology, csRadioTech: RadioTechnology\}\>
+
+Obtains the RAT used by the CS and PS domains. This function uses a promise to return the result. 
+
+Before using this API, you must declare the **ohos.permission.GET\_NETWORK\_INFO** permission.
+
+- Parameters
+
+  | Name| Type| Mandatory| Description|
+  | ------ | ------ | ---- | -------------------------------------- |
+  | slotId | number | Yes| SIM card slot ID. The options are as follows: <br/> - **0**: slot 1<br/> - **1**: slot 2|
+
+- Return values
+
+  | Type| Description|
+  | ------------------------------------------------------------ | ----------------------------------------------- |
+  | Promise<{psRadioTech: [RadioTechnology](#RadioTechnology), csRadioTech: [RadioTechnology](#RadioTechnology)}> | Promise used to return the result.|
+
+-   Example
+
+    ```
+    let slotId = 0;
+    let promise = radio.getRadioTech(slotId);
+    promise.then(data => {
+        console.log(`getRadioTech success, data->${JSON.stringify(data)}`);
+    }).catch(err => {
+        console.log(`getRadioTech fail, err->${JSON.stringify(err)}`);
+    });
+    ```
+
+
+## radio.getNetworkState<a name=radio.getNetworkState-callback1></a>
+
+getNetworkState\(callback: AsyncCallback<NetworkState\>\): void
+
+Obtains the network status. This function uses an asynchronous callback to return the result.
+
+Before using this API, you must declare the **ohos.permission.GET\_NETWORK\_INFO** permission.
+
+- Parameters
+
+  | Name| Type| Mandatory| Description|
+  | -------- | ---------------------------------------------- | ---- | ---------- |
+  | callback | AsyncCallback\<[NetworkState](#NetworkState)\> | Yes| Callback used to return the result.|
+
+-   Example
+
+    ```
+    radio.getNetworkState((err, data) =>{
+        console.log(`callback: err->${JSON.stringify(err)}, data->${JSON.stringify(data)}`);
+    });
+    ```
+
+
+## radio.getNetworkState<a name=radio.getNetworkState-callback2></a>
+
+getNetworkState\(slotId: number, callback: AsyncCallback<NetworkState\>\): void
+
+Obtains the network status of the SIM card in the specified slot. This function uses an asynchronous callback to return the result.
+
+Before using this API, you must declare the **ohos.permission.GET\_NETWORK\_INFO** permission.
+
+- Parameters
+
+  | Name| Type| Mandatory| Description|
+  | -------- | ---------------------------------------------- | ---- | -------------------------------------- |
+  | slotId   | number                                         | Yes| SIM card slot ID. The options are as follows: <br/> - **0**: slot 1<br/> - **1**: slot 2|
+  | callback | AsyncCallback\<[NetworkState](#NetworkState)\> | Yes| Callback used to return the result.|
+
+-   Example
+
+    ```
+    let slotId = 0;
+    radio.getNetworkState(slotId, (err, data) => {
+        console.log(`callback: err->${JSON.stringify(err)}, data->${JSON.stringify(data)}`);
+    });
+    ```
+
+
+## radio.getNetworkState<a name=radio.getNetworkState-promise></a>
+
+getNetworkState\(slotId?: number\): Promise<NetworkState\>
+
+Obtains the network status of the SIM card in the specified slot. This function uses a promise to return the result.
+
+Before using this API, you must declare the **ohos.permission.GET\_NETWORK\_INFO** permission.
+
+- Parameters
+
+  | Name| Type| Mandatory| Description|
+  | ------ | ------ | ---- | -------------------------------------- |
+  | slotId | number | No| SIM card slot ID. The options are as follows: <br/> - **0**: slot 1<br/> - **1**: slot 2|
+
+- Return values
+
+  | Type| Description|
+  | ---------------------------------------- | --------------------------- |
+  | Promise\<[NetworkState](#NetworkState)\> | Promise used to return the result.|
+
+-   Example
+
+    ```
+    let slotId = 0;
+    let promise = radio.getNetworkState(slotId);
+    promise.then(data => {
+        console.log(`getNetworkState success, promise: data->${JSON.stringify(data)}`);
+    }).catch(err => {
+        console.log(`getNetworkState fail, promise: err->${JSON.stringify(err)}`);
+    });
+    ```
+
+
+## radio.getNetworkSelectionMode<a name=radio.getNetworkSelectionMode-callback></a>
+
+getNetworkSelectionMode\(slotId: number, callback: AsyncCallback<NetworkSelectionMode\>\): void
+
+Obtains the network selection mode of the SIM card in the specified slot. This function uses an asynchronous callback to return the result.
+
+- Parameters
+
+  | Name| Type| Mandatory| Description|
+  | -------- | ------------------------------------------------------------ | ---- | -------------------------------------- |
+  | slotId   | number                                                       | Yes| SIM card slot ID. The options are as follows: <br/> - **0**: slot 1<br/> - **1**: slot 2|
+  | callback | AsyncCallback\<[NetworkSelectionMode](#NetworkSelectionMode)\> | Yes| Callback used to return the result.|
+
+-   Example
+
+    ```
+    let slotId = 0;
+    radio.getNetworkSelectionMode(slotId, (err, data) => {
+        console.log(`callback: err->${JSON.stringify(err)}, data->${JSON.stringify(data)}`);
+    });
+    ```
+
+
+## radio.getNetworkSelectionMode<a name=radio.getNetworkSelectionMode-promise></a>
+
+getNetworkSelectionMode\(slotId: number\): Promise<NetworkSelectionMode\>
+
+Obtains the network selection mode of the SIM card in the specified slot. This function uses a promise to return the result.
+
+- Parameters
+
+  | Name| Type| Mandatory| Description|
+  | ------ | ------ | ---- | -------------------------------------- |
+  | slotId | number | Yes| SIM card slot ID. The options are as follows: <br/> - **0**: slot 1<br/> - **1**: slot 2|
+
+- Return values
+
+  | Type| Description|
+  | -------------------------------------------------------- | ------------------------------- |
+  | Promise\<[NetworkSelectionMode](#NetworkSelectionMode)\> | Promise used to return the result.|
+
+-   Example
+
+    ```
+    let slotId = 0;
+    let promise = radio.getNetworkSelectionMode(slotId);
+    promise.then(data => {
+        console.log(`getNetworkSelectionMode success, promise: data->${JSON.stringify(data)}`);
+    }).catch(err => {
+        console.log(`getNetworkSelectionMode fail, promise: err->${JSON.stringify(err)}`);
+    });
+    ```
+
+
+## radio.getISOCountryCodeForNetwork<sup>7+</sup><a name=radio.getISOCountryCodeForNetwork-callback></a>
+
+getISOCountryCodeForNetwork\(slotId: number, callback: AsyncCallback<string\>\): void
+
+Obtains the ISO country code of the network with which the SIM card in the specified slot is registered. This function uses an asynchronous callback to return the result.
+
+- Parameters
+
+  | Name| Type| Mandatory| Description|
+  | -------- | ----------------------- | ---- | ---------------------------------------- |
+  | slotId   | number                  | Yes| SIM card slot ID. The options are as follows: <br/> - **0**: slot 1<br/> - **1**: slot 2|
+  | callback | AsyncCallback\<string\> | Yes| Callback used to return the result, which is a country code, for example, **CN** (China).|
+
+-   Example
+
+    ```
+    let slotId = 0;
+    radio.getISOCountryCodeForNetwork(slotId, (err, data) => {
+        console.log(`callback: err->${JSON.stringify(err)}, data->${JSON.stringify(data)}`);
+    });
+    ```
+
+
+## radio.getISOCountryCodeForNetwork<sup>7+</sup><a name=radio.getISOCountryCodeForNetwork-promise></a>
+
+getISOCountryCodeForNetwork\(slotId: number\): Promise<string\>
+
+Obtains the ISO country code of the network with which the SIM card in the specified slot is registered. This function uses a promise to return the result.
+
+- Parameters
+
+  | Name| Type| Mandatory| Description|
+  | ------ | ------ | ---- | -------------------------------------- |
+  | slotId | number | Yes| SIM card slot ID. The options are as follows: <br/> - **0**: slot 1<br/> - **1**: slot 2|
+
+- Return values
+
+  | Type| Description|
+  | ----------------- | ------------------------------------------------------------ |
+  | Promise\<string\> | Promise used to return the result, which is an ISO country code, for example, **CN** (China).|
+
+-   Example
+
+    ```
+    let slotId = 0;
+    let promise = radio.getISOCountryCodeForNetwork(slotId);
+    promise.then(data => {
+        console.log(`getISOCountryCodeForNetwork success, promise: data->${JSON.stringify(data)}`);
+    }).catch(err => {
+        console.log(`getISOCountryCodeForNetwork fail, promise: err->${JSON.stringify(err)}`);
+    });
+    ```
+
+
+## radio.getSignalInformation<a name=radio.getSignalInformation-callback></a>
+
+getSignalInformation\(slotId: number, callback: AsyncCallback<Array<SignalInformation\>\>\): void
+
+Obtains a list of signal strengths of the network with which the SIM card in the specified slot is registered. This function uses an asynchronous callback to return the result. 
+
+- Parameters
+
+  | Name| Type| Mandatory| Description|
+  | -------- | ------------------------------------------------------------ | ---- | ------------------------------------------------------------ |
+  | slotId   | number                                                       | Yes| SIM card slot ID. The options are as follows: <br/> - **0**: slot 1<br/> - **1**: slot 2|
+  | callback | AsyncCallback\<Array\<[SignalInformation](#SignalInformation)\>\> | Yes| Callback used to return the result, which is a list of [SignalInformation](#SignalInformation) objects.|
+
+-   Example
+
+    ```
+    let slotId = 0;
+    radio.getSignalInformation(slotId, (err, data) => {
+       console.log(`callback: err->${JSON.stringify(err)}, data->${JSON.stringify(data)}`);
+    });
+    ```
+
+
+## radio.getSignalInformation<a name=radio.getSignalInformation-promise></a>
+
+getSignalInformation\(slotId: number\): Promise<Array<SignalInformation\>\>
+
+Obtains a list of signal strengths of the network with which the SIM card in the specified slot is registered. This function uses a promise to return the result. 
+
+- Parameters
+
+  | Name| Type| Mandatory| Description|
+  | ------ | ------ | ---- | -------------------------------------- |
+  | slotId | number | Yes| SIM card slot ID. The options are as follows: <br/> - **0**: slot 1<br/> - **1**: slot 2|
+
+- Return values
+
+  | Type| Description|
+  | ----------------------------------------------------------- | ------------------------------------------------------------ |
+  | Promise\<Array\<[SignalInformation](#SignalInformation)\>\> | Promise used to return the result, which is a list of [SignalInformation](#SignalInformation) objects.|
+
+-   Example
+
+    ```
+    let slotId = 0;
+    let promise = radio.getSignalInformation(slotId);
+    promise.then(data => {
+        console.log(`getSignalInformation success, promise: data->${JSON.stringify(data)}`);
+    }).catch(err => {
+        console.error(`getSignalInformation fail, promise: err->${JSON.stringify(err)}`);
+    });
+    ```
+
+
+## radio.isRadioOn<sup>7+</sup><a name=radio.isRadioOn-callback></a>
+
+isRadioOn\(callback: AsyncCallback<boolean\>\): void
+
+Checks whether radio is turned on. This function uses an asynchronous callback to return the result.
+
+Before using this API, you must declare the **ohos.permission.GET\_NETWORK\_INFO** permission.
+
+- Parameters
+
+  | Name| Type| Mandatory| Description|
+  | -------- | ------------------------ | ---- | ------------------------------------------------------- |
+  | callback | AsyncCallback\<boolean\> | Yes| Callback used to return the result. <br/> - **true**: Radio is turned on.<br/> - **false**: Radio is turned off.|
+
+-   Example
+
+    ```
+    radio.isRadioOn((err, data) => {
+        console.log(`callback: err->${JSON.stringify(err)}, data->${JSON.stringify(data)}`);
+    });
+    ```
+
+
+## radio.isRadioOn<sup>7+</sup><a name=radio.isRadioOn-promise></a>
+
+isRadioOn\(\): Promise<boolean\>
+
+Checks whether radio is turned on. This function uses a promise to return the result.
+
+Before using this API, you must declare the **ohos.permission.GET\_NETWORK\_INFO** permission.
+
+- Return values
+
+  | Type| Description|
+  | ------------------ | ------------------------------------------------------------ |
+  | Promise\<boolean\> | Promise used to return the result. <br/> - **true**: Radio is turned on.<br/> - **false**: Radio is turned off.|
+
+-   Example
+
+    ```
+    let promise = radio.isRadioOn();
+    promise.then(data => {
+        console.log(`isRadioOn success, promise: data->${JSON.stringify(data)}`);
+    }).catch(err => {
+        console.error(`isRadioOn fail, promise: err->${JSON.stringify(err)}`);
+    });
+    ```
+
+
+## RadioTechnology<a name=RadioTechnology></a>
+
+Enumerates the RATs.
+
+| Variable| Value| Description|
+| ------------------------- | ---- | ------------------------------------------------------------ |
+| RADIO_TECHNOLOGY_UNKNOWN  | 0    | Unknown|
+| RADIO_TECHNOLOGY_GSM      | 1    | Global System for Mobile Communication (GSM)|
+| RADIO_TECHNOLOGY_1XRTT    | 2    | Single-Carrier Radio Transmission Technology (1XRTT)|
+| RADIO_TECHNOLOGY_WCDMA    | 3    | Wideband Code Division Multiple Access (WCDMA)|
+| RADIO_TECHNOLOGY_HSPA     | 4    | High Speed Packet Access (HSPA)|
+| RADIO_TECHNOLOGY_HSPAP    | 5    | Evolved High Speed Packet Access (HSPA+)|
+| RADIO_TECHNOLOGY_TD_SCDMA | 6    | Time Division Synchronous Code Division Multiple Access (TD-SCDMA)|
+| RADIO_TECHNOLOGY_EVDO     | 7    | Evolution-Data Optimized (EVDO)|
+| RADIO_TECHNOLOGY_EHRPD    | 8    | Evolved High Rate Package Data (EHRPD)|
+| RADIO_TECHNOLOGY_LTE      | 9    | Long Term Evolution (LTE)|
+| RADIO_TECHNOLOGY_LTE_CA   | 10   | Long Term Evolution_Carrier Aggregation (LTE_CA)|
+| RADIO_TECHNOLOGY_IWLAN    | 11   | Industrial Wireless LAN (IWLAN)|
+| RADIO_TECHNOLOGY_NR       | 12   | New Radio (NR)|
+
+
+## SignalInformation<a name=SignalInformation></a>
+
+Defines the signal strength.
+
+| Attribute| Type| Description|
+| ----------- | --------------------------- | ------------------ |
+| signalType  | [NetworkType](#NetworkType) | Signal strength type.|
+| signalLevel | number                      | Signal strength level.|
+
+
+## NetworkType<a name=NetworkType></a>
+
+Enumerates network types.
+
+| Variable| Value| Description|
+| -------------------- | ---- | ------------------------------------------------------------ |
+| NETWORK_TYPE_UNKNOWN | 0    | Unknown|
+| NETWORK_TYPE_GSM     | 1    | GSM network|
+| NETWORK_TYPE_CDMA    | 2    | CDMA network|
+| NETWORK_TYPE_WCDMA   | 3    | WCDMA network|
+| NETWORK_TYPE_TDSCDMA | 4    | TD-SCDMA network|
+| NETWORK_TYPE_LTE     | 5    | LTE network|
+| NETWORK_TYPE_NR      | 6    | 5G NR network|
+
+## NetworkState<a name=NetworkState></a>
+
+Defines the network registration status.
+
+| Variable| Type| Description|
+| ----------------- | --------------------- | ------------------------------ |
+| longOperatorName  | string                | Long carrier name of the registered network.|
+| shortOperatorName | string                | Short carrier name of the registered network.|
+| plmnNumeric       | string                | PLMN code of the registered network.|
+| isRoaming         | boolean               | Whether the user is roaming.|
+| regState          | [RegState](#RegState) | Network registration status of the device.|
+| nsaState          | [NsaState](#NsaState) | NSA network registration status of the device.|
+| isCaActive        | boolean               | Whether carrier aggregation (CA) is supported.|
+| isEmergency       | boolean               | Whether only emergency calls are allowed.|
+
+
+## RegState<a name=RegState></a>
+
+Enumerates network registration states.
+
+| Variable| Value| Description|
+| ----------------------------- | ---- | -------------------------- |
+| REG_STATE_NO_SERVICE          | 0    | The device cannot use any service.|
+| REG_STATE_IN_SERVICE          | 1    | The device can use services normally. |
+| REG_STATE_EMERGENCY_CALL_ONLY | 2    | The device can use only the emergency call service.|
+| REG_STATE_POWER_OFF           | 3    | The cellular radio service is disabled.|
+
+
+## NsaState<a name=NsaState></a>
+
+Enumerates NSA network states.
+
+| Variable| Value| Description|
+| -------------------------- | ---- | ---------------------------------------------------------- |
+| NSA_STATE_NOT_SUPPORT      | 1    | The device is in idle or connected state in an LTE cell that does not support NSA.|
+| NSA_STATE_NO_DETECT        | 2    | The device is in the idle state in an LTE cell that supports NSA but does not support NR coverage detection.|
+| NSA_STATE_CONNECTED_DETECT | 3    | The device is connected to the LTE network in an LTE cell that supports NSA and NR coverage detection.|
+| NSA_STATE_IDLE_DETECT      | 4    | The device is in the idle state in an LTE cell that supports NSA and NR coverage detection.|
+| NSA_STATE_DUAL_CONNECTED   | 5    | The device is connected to the LTE/NR network in an LTE cell that supports NSA.|
+| NSA_STATE_SA_ATTACHED      | 6    | The device is idle or connected to the NG-RAN cell when being attached to the 5G Core.|
+
+
+## NetworkSelectionMode<a name=NetworkSelectionMode></a>
+
+Enumerates network selection modes.
+
+| Variable| Value| Description|
+| --------------------------- | ---- | -------------- |
+| NETWORK_SELECTION_UNKNOWN   | 0    | Unknown network selection mode.|
+| NETWORK_SELECTION_AUTOMATIC | 1    | Automatic network selection mode.|
+| NETWORK_SELECTION_MANUAL    | 2    | Manual network selection mode.|
diff --git a/en/application-dev/js-reference/apis/js-apis-sim.md b/en/application-dev/js-reference/apis/js-apis-sim.md
new file mode 100644
index 0000000000000000000000000000000000000000..9d27fea1ef66d7e3727e2b3cfcaf22175668ea6c
--- /dev/null
+++ b/en/application-dev/js-reference/apis/js-apis-sim.md
@@ -0,0 +1,388 @@
+# SIM Management
+
+>**Note:**
+>
+>- The APIs of this module are supported since API version 6.
+>- APIs marked with <sup>7+</sup> are supported since API version 7.
+
+## Modules to Import
+
+```
+import sim from '@ohos.telephony.sim';
+```
+
+## sim.getSimIccId<a name=sim.getSimIccId-callback></a>
+
+getSimIccId\(slotId: number, callback: AsyncCallback<string\>\): void
+
+Obtains the integrated circuit card identity  (ICCID) of the SIM card in the specified slot. This function uses an asynchronous callback to return the result.
+
+Before using this API, you must declare the **ohos.permission.GET\_TELEPHONY\_STATE** permission.
+
+-   Parameters
+
+    | Name| Type| Mandatory| Description|
+    | -------- | --------------------------- | ---- | -------------------------------------- |
+    | slotId   | number                      | Yes| Card slot ID. The options are as follows: <br/> - **0**: slot 1 <br/> - **1**: slot 2|
+    | callback | AsyncCallback&lt;string&gt; | Yes| Callback used to return the result.|
+
+
+-   Example
+
+    ```
+    sim.getSimIccId(0, (err, data) => {
+        console.log(`callback: err->${JSON.stringify(err)}, data->${JSON.stringify(data)}`);
+    });
+    ```
+
+
+## sim.getSimIccId<a name=sim.getSimIccId-promise></a>
+
+getSimIccId\(slotId: number\): Promise<string\>
+
+Obtains the ICCID of the SIM card in the specified slot. This function uses a promise to return the result.
+
+Before using this API, you must declare the **ohos.permission.GET\_TELEPHONY\_STATE** permission.
+
+- Parameters
+
+    | Name| Type| Mandatory| Description|
+    | ------ | ------ | ---- | -------------------------------------- |
+    | slotId | number | Yes| Card slot ID. The options are as follows: <br/> - **0**: slot 1 <br/> - **1**: slot 2|
+
+- Return values
+
+    | Type| Description|
+    | --------------------- | ---------------------------------- |
+    | Promise&lt;string&gt; | Promise used to return the result.|
+
+-   Example
+
+    ```
+    let promise = sim.getSimIccId(0);
+    promise.then(data => {
+        console.log(`getSimIccId success, promise: data->${JSON.stringify(data)}`);
+    }).catch(err => {
+        console.log(`getSimIccId fail, promise: err->${JSON.stringify(err)}`);
+    });
+    ```
+
+## sim.getDefaultVoiceSlotId<sup>7+</sup><a name= sim.getDefaultVoiceSlotId-callback></a>
+
+getDefaultVoiceSlotId\(callback: AsyncCallback<number\>\): void
+
+Obtains the default slot ID of the SIM card that provides voice services. This function uses an asynchronous callback to return the result.
+
+- Parameters
+
+  | Name| Type| Mandatory| Description|
+  | -------- | --------------------------- | ---- | ---------- |
+  | callback | AsyncCallback&lt;number&gt; | Yes| Callback used to return the result.|
+
+-   Example
+
+    ```
+    sim.getDefaultVoiceSlotId((err, data) => {
+        console.log(`callback: err->${JSON.stringify(err)}, data->${JSON.stringify(data)}`);
+    });
+    ```
+
+
+## sim.getDefaultVoiceSlotId<sup>7+</sup><a name=sim.getDefaultVoiceSlotId-promise></a>
+
+getDefaultVoiceSlotId\(\): Promise<number\>
+
+Obtains the default slot ID of the SIM card that provides voice services. This function uses a promise to return the result.
+
+- Return values
+
+  | Type| Description|
+  | ----------------- | --------------------------------------- |
+  | Promise\<number\> | Promise used to return the result.|
+
+-   Example
+
+    ```
+    let promise = sim.getDefaultVoiceSlotId();
+    promise.then(data => {
+        console.log(`getDefaultVoiceSlotId success, promise: data->${JSON.stringify(data)}`);
+    }).catch(err => {
+        console.log(`getDefaultVoiceSlotId fail, promise: err->${JSON.stringify(err)}`);
+    });
+    ```
+
+## sim.getISOCountryCodeForSim<a name=sim.getISOCountryCodeForSim-callback></a>
+
+getISOCountryCodeForSim\(slotId: number, callback: AsyncCallback<string\>\): void
+
+Obtains the ISO country code of the SIM card in the specified slot. This function uses an asynchronous callback to return the result.
+
+- Parameters
+
+  | Name| Type| Mandatory| Description|
+  | -------- | ----------------------- | ---- | ---------------------------------------- |
+  | slotId   | number                  | Yes| Card slot ID. The options are as follows: <br/> - **0**: slot 1 <br/> - **1**: slot 2|
+  | callback | AsyncCallback\<string\> | Yes| Callback used to return the result, which is a country code, for example, **CN** (China).|
+
+-   Example
+
+    ```
+    sim.getISOCountryCodeForSim(0, (err, data) => {
+        console.log(`callback: err->${JSON.stringify(err)}, data->${JSON.stringify(data)}`);
+    });
+    ```
+
+
+## sim.getISOCountryCodeForSim<a name=sim.getISOCountryCodeForSim-promise></a>
+
+getISOCountryCodeForSim\(slotId: number\): Promise<string\>
+
+Obtains the ISO country code of the SIM card in the specified slot. This function uses a promise to return the result.
+
+- Parameters
+
+  | Name| Type| Mandatory| Description|
+  | ------ | ------ | ---- | -------------------------------------- |
+  | slotId | number | Yes| Card slot ID. The options are as follows: <br/> - **0**: slot 1 <br/> - **1**: slot 2|
+
+- Return values
+
+  | Type| Description|
+  | ----------------- | ------------------------------------------------------------ |
+  | Promise\<string\> | Promise used to return the result, which is a country code, for example, **CN** (China).|
+
+-   Example
+
+    ```
+    let promise = sim.getISOCountryCodeForSim(0);
+    promise.then(data => {
+        console.log(`getISOCountryCodeForSim success, promise: data->${JSON.stringify(data)}`);
+    }).catch(err => {
+        console.log(`getISOCountryCodeForSim fail, promise: err->${JSON.stringify(err)}`);
+    });
+    ```
+
+
+## sim.getSimOperatorNumeric<a name=sim.getSimOperatorNumeric-callback></a>
+
+getSimOperatorNumeric\(slotId: number, callback: AsyncCallback<string\>\): void
+
+Obtains the public land mobile network (PLMN) ID of the SIM card in the specified slot. This function uses an asynchronous callback to return the result.
+
+- Parameters
+
+  | Name| Type| Mandatory| Description|
+  | -------- | ----------------------- | ---- | -------------------------------------- |
+  | slotId   | number                  | Yes| Card slot ID. The options are as follows: <br/> - **0**: slot 1 <br/> - **1**: slot 2|
+  | callback | AsyncCallback\<string\> | Yes| Callback used to return the result.|
+
+-   Example
+
+    ```
+    sim.getSimOperatorNumeric(0, (err, data) => {
+        console.log(`callback: err->${JSON.stringify(err)}, data->${JSON.stringify(data)}`);
+    });
+    ```
+
+
+## sim.getSimOperatorNumeric<a name=sim.getSimOperatorNumeric-promise></a>
+
+getSimOperatorNumeric\(slotId: number\): Promise<string\>
+
+Obtains the PLMN ID of the SIM card in the specified slot. This function uses a promise to return the result.
+
+- Parameters
+
+  | Name| Type| Mandatory| Description|
+  | ------ | ------ | ---- | -------------------------------------- |
+  | slotId | number | Yes| Card slot ID. The options are as follows: <br/> - **0**: slot 1 <br/> - **1**: slot 2|
+
+- Return values
+
+  | Type| Description|
+  | ----------------- | ------------------------------------------------ |
+  | Promise\<string\> | Promise used to return the result.|
+
+-   Example
+
+    ```
+    let promise = sim.getSimOperatorNumeric(0);
+    promise.then(data => {
+        console.log(`getSimOperatorNumeric success, promise: data->${JSON.stringify(data)}`);
+    }).catch(err => {
+        console.log(`getSimOperatorNumeric fail, promise: err->${JSON.stringify(err)}`);
+    });
+    ```
+
+
+## sim.getSimSpn<a name=sim.getSimSpn-callback></a>
+
+getSimSpn\(slotId: number, callback: AsyncCallback<string\>\): void
+
+Obtains the service provider name (SPN) of the SIM card in the specified slot. This function uses an asynchronous callback to return the result. 
+
+- Parameters
+
+  | Name| Type| Mandatory| Description|
+  | -------- | ----------------------- | ---- | -------------------------------------- |
+  | slotId   | number                  | Yes| Card slot ID. The options are as follows: <br/> - **0**: slot 1 <br/> - **1**: slot 2|
+  | callback | AsyncCallback\<string\> | Yes| Callback used to return the result.|
+
+-   Example
+
+    ```
+    sim.getSimSpn(0, (err, data) => {
+        console.log(`callback: err->${JSON.stringify(err)}, data->${JSON.stringify(data)}`);
+    });
+    ```
+
+
+## sim.getSimSpn<a name=sim.getSimSpn-promise></a>
+
+getSimSpn\(slotId: number\): Promise<string\>
+
+Obtains the SPN of the SIM card in the specified slot. This function uses a promise to return the result. 
+
+- Parameters
+
+    | Name| Type| Mandatory| Description|
+    | ------ | ------ | ---- | -------------------------------------- |
+    | slotId | number | Yes| Card slot ID. The options are as follows: <br/> - **0**: slot 1 <br/> - **1**: slot 2|
+
+- Return values
+
+    | Type| Description|
+    | ----------------- | ----------------------------------------- |
+    | Promise\<string\> | Promise used to return the result.|
+
+-   Example
+
+    ```
+    let promise = sim.getSimSpn(0);
+    promise.then(data => {
+        console.log(`getSimSpn success, promise: data->${JSON.stringify(data)}`);
+    }).catch(err => {
+        console.log(`getSimSpn fail, promise: err->${JSON.stringify(err)}`);
+    });
+    ```
+
+
+## sim.getSimState<a name=sim.getSimState-callback></a>
+
+getSimState\(slotId: number, callback: AsyncCallback<SimState\>\): void
+
+Obtains the status of the SIM card in the specified slot. This function uses an asynchronous callback to return the result.
+
+- Parameters
+
+  | Name| Type| Mandatory| Description|
+  | -------- | -------------------------------------- | ---- | ----------------------------------------- |
+  | slotId   | number                                 | Yes| Card slot ID. The options are as follows: <br/> - **0**: slot 1 <br/> - **1**: slot 2|
+  | callback | AsyncCallback\<[SimState](#SimState)\> | Yes| Callback used to return the result. For details, see [SimState](#SimState).|
+
+-   Example
+
+    ```
+    sim.getSimState(0, (err, data) => {
+        console.log(`callback: err->${JSON.stringify(err)}, data->${JSON.stringify(data)}`);
+    });
+    ```
+
+
+## sim.getSimState<a name=sim.getSimState-promise></a>
+
+getSimState\(slotId: number\): Promise<SimState\>
+
+Obtains the status of the SIM card in the specified slot. This function uses a promise to return the result.
+
+- Parameters
+
+    | Name| Type| Mandatory| Description|
+    | ------ | ------ | ---- | -------------------------------------- |
+    | slotId | number | Yes| Card slot ID. The options are as follows: <br/> - **0**: slot 1 <br/> - **1**: slot 2|
+
+- Return values
+
+    | Type| Description|
+    | -------------------------------- | ------------------------------------------ |
+    | Promise\<[SimState](#SimState)\> | Promise used to return the result.|
+
+-   Example
+
+    ```
+    let promise = sim.getSimState(0);
+    promise.then(data => {
+        console.log(`getSimState success, promise: data->${JSON.stringify(data)}`);
+    }).catch(err => {
+        console.log(`getSimState fail, promise: err->${JSON.stringify(err)}`);
+    });
+    ```
+
+## sim.getSimGid1<a name=sim.getSimGid1-callback></a>
+
+getSimGid1\(slotId: number, callback: AsyncCallback<string\>\): void
+
+Obtains the group identifier level 1 (GID1) of the SIM card in the specified slot. This function uses an asynchronous callback to return the result.
+
+Before using this API, you must declare the **ohos.permission.GET\_TELEPHONY\_STATE** permission.
+
+- Parameters
+
+  | Name| Type| Mandatory| Description|
+  | -------- | ----------------------- | ---- | -------------------------------------- |
+  | slotId   | number                  | Yes| Card slot ID. The options are as follows: <br/> - **0**: slot 1 <br/> - **1**: slot 2|
+  | callback | AsyncCallback\<string\> | Yes| Callback used to return the result.|
+
+-   Example
+
+    ```
+    sim.getSimGid1(0, (err, data) => {
+        console.log(`callback: err->${JSON.stringify(err)}, data->${JSON.stringify(data)}`);
+    });
+    ```
+
+
+## sim.getSimGid1<a name=sim.getSimGid1-promise></a>
+
+getSimGid1\(slotId: number\): Promise<string\>
+
+Obtains the GID1 of the SIM card in the specified slot. This function uses a promise to return the result.
+
+Before using this API, you must declare the **ohos.permission.GET\_TELEPHONY\_STATE** permission.
+
+- Parameters
+
+    | Name| Type| Mandatory| Description|
+    | ------ | ------ | ---- | -------------------------------------- |
+    | slotId | number | Yes| Card slot ID. The options are as follows: <br/> - **0**: slot 1 <br/> - **1**: slot 2|
+
+- Return values
+
+    | Type| Description|
+    | ----------------- | ------------------------------------------------------------ |
+    | Promise\<string\> | Promise used to return the result.|
+
+-   Example
+
+    ```
+    let promise = sim.getSimGid1(0);
+    promise.then(data => {
+        console.log(`getSimGid1 success, promise: data->${JSON.stringify(data)}`);
+    }).catch(err => {
+        console.log(`getSimGid1 fail, promise: err->${JSON.stringify(err)}`);
+    });
+    ```
+
+
+## SimState<a name=SimState></a>
+
+Enumerates SIM card states.
+
+| Variable| Description|
+| --------------------- | ---------------------------------------------------------- |
+| SIM_STATE_UNKNOWN     | The SIM card is in **unknown** state; that is, the SIM card status cannot be obtained.|
+| SIM_STATE_NOT_PRESENT | The SIM card is in **not present** state; that is, no SIM card is inserted into the slot.|
+| SIM_STATE_LOCKED      | The SIM card is in **locked** state; that is, the SIM card is locked by the personal identification number (PIN), PIN unblocking key (PUK), or network.|
+| SIM_STATE_NOT_READY   | The SIM card is in **not ready** state; that is, the SIM card is present but cannot work properly.|
+| SIM_STATE_READY       | The SIM card is in **ready** state; that is, the SIM card is present and is working properly.|
+| SIM_STATE_LOADED      | The SIM card is in **loaded** state; that is, the SIM card is present and all its files have been loaded.|
diff --git a/en/application-dev/js-reference/apis/js-apis-sms.md b/en/application-dev/js-reference/apis/js-apis-sms.md
new file mode 100644
index 0000000000000000000000000000000000000000..a45f89399ee9e2c5d7cd71585d08f9fb6f9c4c1c
--- /dev/null
+++ b/en/application-dev/js-reference/apis/js-apis-sms.md
@@ -0,0 +1,352 @@
+# SMS
+
+>**Note:**
+>
+>- The APIs of this module are supported since API version 6.
+>
+>- APIs marked with <sup>7+</sup> are supported since API version 7.
+
+## Modules to Import
+
+```
+import sms from '@ohos.telephony.sms';
+```
+
+## sms.createMessage<a name=sms.createMessage-callback></a>
+
+createMessage\(pdu: Array<number\>, specification: string, callback: AsyncCallback<ShortMessage\>\): void
+
+Creates an SMS message instance based on the protocol data unit (PDU) and the specified SMS protocol. This function uses an asynchronous callback to return the result.
+
+- Parameters
+
+  | Name| Type| Mandatory| Description|
+  | ------------- | -------------------------------------------------- | ---- | ------------------------------------------------------------ |
+  | pdu           | Array&lt;number&gt;                                | Yes| Protocol data unit, which is obtained from the received SMS message.|
+  | specification | string                                             | Yes| SMS protocol type. The options are as follows: <br/> - **3gpp**: GSM/UMTS/LTE SMS<br/> - **3gpp2**: CDMA SMS|
+  | callback      | AsyncCallback&lt;[ShortMessage](#ShortMessage)&gt; | Yes| Callback used to return the result.|
+
+-   Example
+
+    ```
+    let specification = '3gpp';
+    let pdu = [0x08, 0x91, ...];
+    sms.createMessage(pdu, specification, (err, data) => {
+        console.log(`callback: err->${JSON.stringify(err)}, data->${JSON.stringify(data)}`);
+    });
+    ```
+
+
+## sms.createMessage<a name=sms.createMessage-promise></a>
+
+createMessage\(pdu: Array<number\>, specification: string\): Promise<ShortMessage\>
+
+Creates an SMS message instance based on the PDU and the specified SMS protocol. This function uses a promise to return the result.
+
+- Parameters
+
+  | Name| Type| Mandatory| Description|
+  | ------------- | ------------------- | ---- | ------------------------------------------------------------ |
+  | pdu           | Array&lt;number&gt; | Yes| Protocol data unit, which is obtained from the received SMS message.|
+  | specification | string              | Yes| SMS protocol type. The options are as follows: <br/> - **3gpp**: GSM/UMTS/LTE SMS<br/> - **3gpp2**: CDMA SMS|
+
+- Return values
+
+  | Type| Description|
+  | -------------------------------------------- | --------------------------------- |
+  | Promise&lt;[ShortMessage](#ShortMessage)&gt; | Promise used to return the result.|
+
+-   Example
+
+    ```
+    let specification = '3gpp';
+    let pdu = [0x08, 0x91, ...];
+    let promise = sms.createMessage(pdu, specification);
+    promise.then(data => {
+        console.log(`createMessage success, promise: data->${JSON.stringify(data)}`);
+    }).catch(err => {
+        console.error(`createMessage fail, promise: err->${JSON.stringify(err)}`);
+    });
+    ```
+
+## sms.sendMessage
+
+sendMessage(options: SendMessageOptions): void
+
+Sends an SMS message.
+
+Before using this API, you must declare the **ohos.permission.SEND_MESSAGES** permission.
+
+- Parameters
+
+  | Name| Type| Mandatory| Description|
+  | ------- | ----------------------------------------- | ---- | ------------------------------------------------------------ |
+  | options | [SendMessageOptions](#SendMessageOptions) | Yes| Options (including the callback) for sending an SMS message. For details, see [SendMessageOptions](#SendMessageOptions).|
+
+- Example
+
+  ```
+  let sendCallback = function (err, data) {    
+      console.log(`sendCallback: err->${JSON.stringify(err)}, data->${JSON.stringify(data)}`); 
+  }
+  let deliveryCallback = function (err, data) {    
+      console.log(`deliveryCallback: err->${JSON.stringify(err)}, data->${JSON.stringify(data)}`); 
+  }
+  let slotId = 0;
+  let content ='SMS message content';
+  let destinationHost = '+861xxxxxxxxxx';
+  let serviceCenter = '+861xxxxxxxxxx';
+  let destinationPort = 1000;
+  let options = {slotId, content, destinationHost, serviceCenter, destinationPort, sendCallback, deliveryCallback};
+  sms.sendMessage(options);
+  ```
+
+
+## sms.getDefaultSmsSlotId<sup>7+</sup><a name=sms.getDefaultSmsSlotId-callback></a>
+
+getDefaultSmsSlotId\(callback: AsyncCallback<number\>\): void
+
+Obtains the default slot of the SIM card used to send SMS messages. This function uses an asynchronous callback to return the result.
+
+- Parameters
+
+  | Name| Type| Mandatory| Description|
+  | -------- | --------------------------- | ---- | ---------------------------------------- |
+  | callback | AsyncCallback&lt;number&gt; | Yes| Callback used to return the result. <br/> - **0**: slot 1<br/> - **1**: slot 2|
+
+-   Example
+
+    ```
+    sms.getDefaultSmsSlotId((err, data) => {
+        console.log(`callback: err->${JSON.stringify(err)}, data->${JSON.stringify(data)}`);
+    });
+    ```
+
+
+## sms.getDefaultSmsSlotId<sup>7+</sup><a name=sms.getDefaultSmsSlotId-promise></a>
+
+getDefaultSmsSlotId\(\): Promise<number\>
+
+Obtains the default slot of the SIM card used to send SMS messages. This function uses a promise to return the result.
+
+- Return values
+
+  | Type| Description|
+  | --------------- | ------------------------------------------------------------ |
+  | Promise<number> | Promise used to return the result.<br/> - **0**: slot 1<br/> - **1**: slot 2|
+
+-   Example
+
+    ```
+    let promise = call.getDefaultSmsSlotId();
+    promise.then(data => {
+        console.log(`getDefaultSmsSlotId success, promise: data->${JSON.stringify(data)}`);
+    }).catch(err => {
+        console.error(`getDefaultSmsSlotId fail, promise: err->${JSON.stringify(err)}`);
+    });
+    ```
+
+
+## sms.setSmscAddr<sup>7+</sup><a name=sms.setSmscAddr-callback></a>
+
+setSmscAddr\(slotId: number, smscAddr: string, callback: AsyncCallback<void\>\): void
+
+Sets the short message service center (SMSC) address. This function uses an asynchronous callback to return the result.
+
+Before using this API, you must declare the **ohos.permission.SET\_TELEPHONY\_STATE** permission.
+
+- Parameters
+
+  | Name| Type| Mandatory| Description|
+  | -------- | ------------------------- | ---- | ----------------------------------------- |
+  | slotId   | number                    | Yes| SIM card slot ID. The options are as follows: <br/> - **0**: slot 1<br/> - **1**: slot 2|
+  | smscAddr | string                    | Yes| SMSC address. |
+  | callback | AsyncCallback&lt;void&gt; | Yes| Callback used to return the result.|
+
+-   Example
+
+    ```
+    let slotId = 0;
+    let smscAddr = '+861xxxxxxxxxx';
+    sms.setSmscAddr(slotId, smscAddr, (err,data) => {
+          console.log(`callback: err->${JSON.stringify(err)}, data->${JSON.stringify(data)}`);
+    });
+    ```
+
+
+## sms.setSmscAddr<sup>7+</sup><a name=sms.setSmscAddr-promise></a>
+
+setSmscAddr\(slotId: number, smscAddr: string\): Promise<void\>
+
+Sets the SMSC address. This function uses a promise to return the result.
+
+Before using this API, you must declare the **ohos.permission.SET\_TELEPHONY\_STATE** permission.
+
+- Parameters
+
+  | Name| Type| Mandatory| Description|
+  | -------- | ------ | ---- | ----------------------------------------- |
+  | slotId   | number | Yes| SIM card slot ID. The options are as follows: <br/> - **0**: slot 1<br/> - **1**: slot 2|
+  | smscAddr | string | Yes| SMSC address.|
+
+- Return values
+
+  | Type| Description|
+  | ------------------- | ------------------------------- |
+  | Promise&lt;void&gt; | Promise used to return the result.|
+
+-   Example
+
+    ```
+    let slotId = 0;
+    let smscAddr = '+861xxxxxxxxxx';
+    let promise = sms.setSmscAddr(slotId, smscAddr);
+    promise.then(data => {
+        console.log(`setSmscAddr success, promise: data->${JSON.stringify(data)}`);
+    }).catch(err => {
+        console.error(`setSmscAddr fail, promise: err->${JSON.stringify(err)}`);
+    });
+    ```
+
+
+## sms.getSmscAddr<sup>7+</sup><a name=sms.getSmscAddr-callback></a>
+
+getSmscAddr\(slotId: number, callback: AsyncCallback<string\>\): void
+
+Obtains the SMSC address. This function uses an asynchronous callback to return the result.
+
+Before using this API, you must declare the **ohos.permission.GET\_TELEPHONY\_STATE** permission.
+
+- Parameters
+
+  | Name| Type| Mandatory| Description|
+  | -------- | --------------------------- | ---- | ----------------------------------------- |
+  | slotId   | number                      | Yes| SIM card slot ID. The options are as follows: <br/> - **0**: slot 1<br/> - **1**: slot 2|
+  | callback | AsyncCallback&lt;string&gt; | Yes| Callback used to return the result.|
+
+-   Example
+
+    ```
+    let slotId = 0;
+    sms.getSmscAddr(slotId, (err, data) => {
+          console.log(`callback: err->${JSON.stringify(err)}, data->${JSON.stringify(data)}`);
+    });
+    ```
+
+
+## sms.getSmscAddr<sup>7+</sup><a name=sms.getSmscAddr-promise></a>
+
+getSmscAddr\(slotId: number\): Promise<string\>
+
+Obtains the SMSC address. This function uses a promise to return the result.
+
+Before using this API, you must declare the **ohos.permission.GET\_TELEPHONY\_STATE** permission.
+
+- Parameters
+
+  | Name| Type| Mandatory| Description|
+  | ------ | ------ | ---- | ----------------------------------------- |
+  | slotId | number | Yes| SIM card slot ID. The options are as follows: <br/> - **0**: slot 1<br/> - **1**: slot 2|
+
+- Return values
+
+  | Type| Description|
+  | --------------------- | --------------------------------------------- |
+  | Promise&lt;string&gt; | Promise used to return the result.|
+
+-   Example
+
+    ```
+    let slotId = 0;
+    let promise = sms.getSmscAddr(slotId);
+    promise.then(data => {
+        console.log(`getSmscAddr success, promise: data->${JSON.stringify(data)}`);
+    }).catch(err => {
+        console.error(`getSmscAddr fail, promise: err->${JSON.stringify(err)}`);
+    });
+    ```
+
+
+## ShortMessage<a name=ShortMessage></a>
+
+Defines an SMS message instance.
+
+| Variable| Type| Description|
+| ------------------------ | --------------------------------------- | ------------------------------------------------------------ |
+| emailAddress             | string                                  | Email address.|
+| emailMessageBody         | string                                  | Email body.|
+| hasReplyPath             | boolean                                 | Whether the received SMS contains **TP-Reply-Path**. The default value is **false**. <br/>**TP-Reply-Path**: the path in which the mobile phone can reply to the SMS message through the originating SMSC.|
+| isEmailMessage           | boolean                                 | Whether the received SMS message is an email.|
+| isReplaceMessage         | boolean                                 | Whether the received SMS message is a **replace short message**. The default value is **false**. <br/>For details, see section 9.2.3.9 in **3GPP TS 23.040**.|
+| isSmsStatusReportMessage | boolean                                 | Whether the received SMS message is an SMS delivery status report. The default value is **false**. <br/>SMS delivery status report: a message sent from the SMSC to show the current status of the SMS message you delivered.|
+| messageClass             | [ShortMessageClass](#ShortMessageClass) | SMS message type.|
+| pdu                      | Array&lt;number&gt;                     | PDU in the SMS message.|
+|protocolId|number|Protocol identifier used for delivering the SMS message.|
+|scAddress|string|SMSC address.|
+|scTimestamp|number|SMSC timestamp.|
+|status|number|SMS message status sent by the SMSC in the **SMS-STATUS-REPORT** message.|
+|userRawData|Array&lt;number&gt;|User data excluding the data header.|
+|visibleMessageBody|string|SMS message body.|
+|visibleRawAddress|string|Sender address to be displayed on the UI.|
+
+
+## ShortMessageClass<a name=ShortMessageClass></a>
+
+Enumerates SMS message types.
+
+| Variable| Value| Description|
+| ---------------- | ---- | ---------------------------------------- |
+| UNKNOWN          | 0    | Unknown type.|
+| INSTANT_MESSAGE  | 1    | Instant message, which is displayed immediately after being received.|
+| OPTIONAL_MESSAGE | 2    | Message stored in the device or SIM card.|
+| SIM_MESSAGE      | 3    | Message containing SIM card information, which is to be stored in the SIM card.|
+| FORWARD_MESSAGE  | 4    | Message to be forwarded to another device.|
+
+
+## SendMessageOptions<a name=SendMessageOptions></a>
+
+Provides the options (including callbacks) for sending an SMS message.
+
+For example, you can specify the SMS message type by the optional parameter **content**.
+
+| Name| Type| Mandatory| Description|
+| ---------------- | ------------------------------------------------------------ | ---- | ------------------------------------------------------------ |
+| slotId           | number                                                       | Yes| Slot ID of the SIM card used for sending SMS messages: <br/> - **0**: slot 1 <br/> - **1**: slot 2|
+| destinationHost  | string                                                       | Yes| Destination address of the SMS message.|
+| content          | string \| Array&lt;number&gt;                                | Yes| SMS message type. If the content is comprised of character strings, the SMS message is a text message. If the content is comprised of byte arrays, the SMS message is a data message.|
+| serviceCenter    | string                                                       | No| SMSC address. By default, the SMSC address in the SIM card is used.|
+| destinationPort  | number                                                       | No| Destination port of the SMS message. This parameter is mandatory only for a data message.  |
+| sendCallback     | AsyncCallback&lt;[ISendShortMessageCallback](#ISendShortMessageCallback)&gt; | No| Callback used to return the SMS message sending result. For details, see [ISendShortMessageCallback](#ISendShortMessageCallback).|
+| deliveryCallback | AsyncCallback&lt;[IDeliveryShortMessageCallback](#IDeliveryShortMessageCallback)&gt; | No| Callback used to return the SMS message delivery report. For details, see [IDeliveryShortMessageCallback](#IDeliveryShortMessageCallback).|
+
+
+## ISendShortMessageCallback<a name=ISendShortMessageCallback></a>
+
+Provides the callback for the SMS message delivery report. It consists of three parts: SMS message sending result, URI for storing the sent SMS message, and whether the SMS message is the last part of a long SMS message.
+
+| Name| Type| Mandatory| Description|
+| ---------- | ------------------------------- | ---- | ------------------------------------------------------------ |
+| isLastPart | boolean                         | No| Whether this SMS message is the last part of a long SMS message. The value **true** indicates that this SMS message is the last part of a long SMS message, and value **false** indicates the opposite. The default value is **false**.|
+| result     | [SendSmsResult](#SendSmsResult) | Yes| SMS message sending result.|
+| url        | string                          | Yes| URI for storing sent SMS messages.|
+
+
+## IDeliveryShortMessageCallback<a name=IDeliveryShortMessageCallback></a>
+
+Provides the callback for the SMS message delivery report.
+
+| Name| Type| Mandatory| Description|
+| ------ | ------------------- | ---- | -------------- |
+| pdu    | Array&lt;number&gt; | Yes| SMS message delivery report.|
+
+
+## SendSmsResult<a name=SendSmsResult></a>
+
+Enumerates SMS message sending results.
+
+| Name| Value| Description|
+| ------------------------------------ | ---- | ------------------------------------------------------ |
+| SEND_SMS_SUCCESS                     | 0    | The SMS message is sent successfully.|
+| SEND_SMS_FAILURE_UNKNOWN             | 1    | Failed to send the SMS message due to unknown reasons.|
+| SEND_SMS_FAILURE_RADIO_OFF           | 2    | Failed to send the SMS message because the modem is shut down.|
+| SEND_SMS_FAILURE_SERVICE_UNAVAILABLE | 3    | Failed to send the SMS message because the network is unavailable or SMS message sending or receiving is not supported.|