diff --git a/BUILD.gn b/BUILD.gn
index 5cdbddc5e7d0576f63d9ba33f73ee4167fb6c074..1943c0e88ea4a860f28875a19ef4f85d6fc01e03 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -111,6 +111,7 @@ ohos_copy("ets_component") {
 
 ohos_copy("common_api") {
   sources = [
+    "api/@ohos.wifi.d.ts",
     "api/common/@system.app.d.ts",
     "api/common/@system.battery.d.ts",
     "api/common/@system.bluetooth.d.ts",
diff --git a/api/@ohos.wifi.d.ts b/api/@ohos.wifi.d.ts
index c6a0537d284b49008d2c0f066b4bda4cb6361b1d..760c5f0bd94dbed37020f021388a1131e5a6d070 100755
--- a/api/@ohos.wifi.d.ts
+++ b/api/@ohos.wifi.d.ts
@@ -13,14 +13,15 @@
  * limitations under the License.
  */
 
-import { AsyncCallback } from "./basic";
+import { AsyncCallback, Callback } from "./basic";
 
 /**
  * Provides methods to operate or manage Wi-Fi.
  *
- * @SysCap SystemCapability.Communication.WifiDevice
- * @devices phone, tablet
  * @since 6
+ * @SysCap SystemCapability.Communication.WiFi
+ * @devices phone, tablet, tv, wearable, car
+ * @import import wifi from '@ohos.wifi';
  */
 declare namespace wifi {
     /**
@@ -29,7 +30,7 @@ declare namespace wifi {
      * @return Returns {@code true} if the operation is successful; returns {@code false} otherwise.
      *
      * @since 6
-     * @hide SystemApi
+     * @systemapi Hide this for inner system use.
      */
     function enableWifi(): boolean;
 
@@ -39,7 +40,7 @@ declare namespace wifi {
      * @return Returns {@code true} if the operation is successful; returns {@code false} otherwise.
      *
      * @since 6
-     * @hide SystemApi
+     * @systemapi Hide this for inner system use.
      */
     function disableWifi(): boolean;
 
@@ -82,7 +83,7 @@ declare namespace wifi {
      *
      * @devices phone, tablet
      * @since 6
-     * @hide SystemApi
+     * @systemapi Hide this for inner system use.
      */
     function addDeviceConfig(config: WifiDeviceConfig): Promise<number>;
     function addDeviceConfig(config: WifiDeviceConfig, callback: AsyncCallback<number>): void;
@@ -94,7 +95,7 @@ declare namespace wifi {
      * @return Returns {@code true} if the network connection is successful; returns {@code false} otherwise.
      *
      * @since 6
-     * @hide SystemApi
+     * @systemapi Hide this for inner system use.
      */
     function connectToNetwork(networkId: number): boolean;
 
@@ -106,7 +107,7 @@ declare namespace wifi {
      *
      * @devices phone, tablet
      * @since 6
-     * @hide SystemApi
+     * @systemapi Hide this for inner system use.
      */
     function connectToDevice(config: WifiDeviceConfig): boolean;
 
@@ -116,7 +117,7 @@ declare namespace wifi {
      * @return Returns {@code true} for disconnecting network success, returns {@code false} otherwise.
      *
      * @since 6
-     * @hide SystemApi
+     * @systemapi Hide this for inner system use.
      */
     function disconnect(): boolean;
 
@@ -131,12 +132,359 @@ declare namespace wifi {
      */
     function getSignalLevel(rssi: number, band: number): number;
 
+    /**
+     * Obtains information about a Wi-Fi connection.
+     *
+     * @return Returns the Wi-Fi connection information.
+     * @since 7
+     */
+    function getLinkedInfo(): Promise<WifiLinkedInfo>;
+    function getLinkedInfo(callback: AsyncCallback<WifiLinkedInfo>): void;
+
+    /**
+     * Checks whether a Wi-Fi connection has been set up.
+     *
+     * @return Returns {@code true} if a Wi-Fi connection has been set up; returns {@code false} otherwise.
+     * @since 7
+     */
+    function isConnected(): boolean;
+
+    /**
+     * Obtains the features supported by this device.
+     *
+     * <p>To check whether this device supports a specified feature.
+     *
+     * @return Returns the features supported by this device.
+     * @since 7
+     * @systemapi Hide this for inner system use.
+     */
+    function getSupportedFeatures(): number;
+
+    /**
+     * Checks whether this device supports a specified feature.
+     *
+     * @param featureId Indicates the ID of the feature.
+     * @return Returns {@code true} if this device supports the specified feature; returns {@code false} otherwise.
+     * @since 7
+     */
+    function isFeatureSupported(featureId: number): boolean;
+
+    /**
+     * Obtains the MAC address of a Wi-Fi device. Wi-Fi must be enabled.
+     *
+     * <p>The MAC address is unique and cannot be changed.
+     *
+     * @return Returns the MAC address of the Wi-Fi device.
+     * @since 7
+     * @systemapi Hide this for inner system use.
+     */
+    function getDeviceMacAddress(): string[];
+
+    /**
+     * Obtains the IP information of a Wi-Fi connection.
+     *
+     * <p>The IP information includes the host IP address, gateway address, and DNS information.
+     *
+     * @return Returns the IP information of the Wi-Fi connection.
+     * @since 7
+     */
+    function getIpInfo(): IpInfo;
+
+    /**
+     * Obtains the country code of this device.
+     *
+     * @return Returns the country code of this device.
+     * @since 7
+     */
+    function getCountryCode(): string;
+
+    /**
+     * Re-associates to current network.
+     *
+     * @return {@code true} if the Wi-Fi network is re-associate successfully.
+     * @since 7
+     * @systemapi Hide this for inner system use.
+     */
+    function reassociate(): boolean;
+
+    /**
+     * Re-connects to current network.
+     *
+     * @return {@code true} if the Wi-Fi network is re-connect successfully.
+     * @since 7
+     * @systemapi Hide this for inner system use.
+     */
+    function reconnect(): boolean;
+
+    /**
+     * Obtains the list of all existing Wi-Fi configurations.
+     *
+     * <p>You can obtain only the Wi-Fi configurations you created on your own application.
+     *
+     * @return Returns the list of all existing Wi-Fi configurations you created on your application.
+     * @since 7
+     * @systemapi Hide this for inner system use.
+     */
+    function getDeviceConfigs(): Array<WifiDeviceConfig>;
+
+    /**
+     * Updates the specified Wi-Fi configuration.
+     *
+     * @param config Indicates the Wi-Fi configuration to update.
+     *
+     * @return Returns the network ID in the updated Wi-Fi configuration if the update is successful;
+     *     returns {@code -1} if the specified Wi-Fi configuration is not contained in the list.
+     * @since 7
+     * @systemapi Hide this for inner system use.
+     */
+    function updateNetwork(config: WifiDeviceConfig): number;
+
+    /**
+     * Disables a specified network.
+     *
+     * <p>The disabled network will not be associated with again.
+     *
+     * @param netId Identifies the network to disable.
+     * @return Returns {@code true} if the specified network is disabled; returns {@code false} otherwise.
+     * @since 7
+     * @systemapi Hide this for inner system use.
+     */
+    function disableNetwork(netId: number): boolean;
+
+    /**
+     * Removes all the saved Wi-Fi configurations.
+     *
+     * @return Returns {@code true} if all the saved Wi-Fi configurations are removed;
+     *     returns {@code false} otherwise.
+     * @since 7
+     * @systemapi Hide this for inner system use.
+     */
+    function removeAllNetwork(): boolean;
+
+    /**
+     * Deletes a Wi-Fi network with a specified ID.
+     *
+     * <p>After a Wi-Fi network is deleted, its configuration will be deleted from the list of Wi-Fi configurations.
+     * If the Wi-Fi network is being connected, the connection will be interrupted.
+     * The application can only delete Wi-Fi networks it has created.
+     *
+     * @param id Indicates the ID of the Wi-Fi network,
+     *     which can be obtained using the {@link #addDeviceConfig} or {@link #getLinkedInfo} method.
+     * @return Returns {@code true} if the Wi-Fi network is deleted successfully; returns {@code false} otherwise.
+     * @since 7
+     * @systemapi Hide this for inner system use.
+     */
+    function removeDevice(id: number): boolean;
+
+    /**
+     * Enables a Wi-Fi hotspot.
+     *
+     * <p>This method is asynchronous. After the Wi-Fi hotspot is enabled, Wi-Fi may be disabled.
+     *
+     * @return Returns {@code true} if this method is called successfully; returns {@code false} otherwise.
+     * @since 7
+     * @systemapi Hide this for inner system use.
+     */
+    function enableHotspot(): boolean;
+
+    /**
+     * Disables a Wi-Fi hotspot.
+     *
+     * <p>This method is asynchronous. If Wi-Fi is enabled after the Wi-Fi hotspot is disabled, Wi-Fi may be re-enabled.
+     *
+     * @return Returns {@code true} if this method is called successfully; returns {@code false} otherwise.
+     * @since 7
+     * @systemapi Hide this for inner system use.
+     */
+    function disableHotspot(): boolean;
+
+    /**
+     * Checks whether Wi-Fi hotspot is active on a device.
+     *
+     * @return Returns {@code true} if Wi-Fi hotspot is enabled; returns {@code false} otherwise.
+     * @since 7
+     * @systemapi Hide this for inner system use.
+     */
+    function isHotspotActive(): boolean;
+
+    /**
+     * Sets the hotspot for a device.
+     *
+     * <p>Only OPEN and WPA2 PSK hotspots can be configured.
+     *
+     * @param config Indicates the Wi-Fi hotspot configuration.
+     *     The SSID and {@code securityType} must be available and correct.
+     *     If {@code securityType} is not {@code open}, {@code preSharedKey} must be available and correct.
+     * @return Returns {@code true} if the method is called successfully; returns {@code false} otherwise.
+     * @since 7
+     * @systemapi Hide this for inner system use.
+     */
+    function setHotspotConfig(config: HotspotConfig): boolean;
+
+    /**
+     * Obtains the Wi-Fi hotspot configuration.
+     *
+     * @return Returns the configuration of an existing or enabled Wi-Fi hotspot.
+     * @since 7
+     * @systemapi Hide this for inner system use.
+     */
+    function getHotspotConfig(): HotspotConfig;
+
+    /**
+     * Obtains the list of clients that are connected to a Wi-Fi hotspot.
+     *
+     * <p>This method can only be used on a device that serves as a Wi-Fi hotspot.
+     *
+     * @return Returns the list of clients that are connected to the Wi-Fi hotspot.
+     * @since 7
+     * @systemapi Hide this for inner system use.
+     */
+    function getStations(): Array<StationInfo>;
+
+    /**
+     * Defines the EventListener class and provides functions to subscribe or unsubscribe the Wi-Fi events.
+     *
+     * @since 7
+     * @SysCap SystemCapability.Communication.WiFi
+     * @devices phone, tablet, tv, wearable, car
+     */
+    export class EventListener {
+        /**
+         * Subscribe Wi-Fi status change events.
+         *
+         * @return Returns 0: inactive, 1: active, 2: activating, 3: deactivating
+         * @since 7
+         * @permission {@code ohos.permission.GET_WIFI_INFO}
+         */
+         on(type: "wifiStateChange", callback: Callback<number>): void;
+
+         /**
+          * Unsubscribe Wi-Fi status change events.
+          *
+          * <p>All callback functions will be deregistered If there is no specific callback parameter.</p>
+          *
+          * @since 7
+          * @permission {@code ohos.permission.GET_WIFI_INFO}
+          */
+         off(type: "wifiStateChange", callback?: Callback<number>): void;
+
+         /**
+          * Subscribe Wi-Fi connection change events.
+          *
+          * @return Returns 0: disconnected, 1: connected
+          * @since 7
+          * @permission {@code ohos.permission.GET_WIFI_INFO}
+          */
+         on(type: "wifiConnectionChange", callback: Callback<number>): void;
+
+         /**
+          * Unsubscribe Wi-Fi connection change events.
+          *
+          * <p>All callback functions will be deregistered If there is no specific callback parameter.</p>
+          *
+          * @since 7
+          * @permission {@code ohos.permission.GET_WIFI_INFO}
+          */
+         off(type: "wifiConnectionChange", callback?: Callback<number>): void;
+
+         /**
+          * Subscribe Wi-Fi scan status change events.
+          *
+          * @return Returns 0: scan fail, 1: scan success
+          * @since 7
+          * @permission {@code ohos.permission.GET_WIFI_INFO}
+          */
+         on(type: "wifiScanStateChange", callback: Callback<number>): void;
+
+         /**
+          * Unsubscribe Wi-Fi scan status change events.
+          *
+          * <p>All callback functions will be deregistered If there is no specific callback parameter.</p>
+          *
+          * @since 7
+          * @permission {@code ohos.permission.GET_WIFI_INFO}
+          */
+         off(type: "wifiScanStateChange", callback?: Callback<number>): void;
+
+         /**
+          * Subscribe Wi-Fi rssi change events.
+          *
+          * @return Returns RSSI value in dBm
+          * @since 7
+          * @permission {@code ohos.permission.GET_WIFI_INFO}
+          */
+         on(type: "wifiRssiChange", callback: Callback<number>): void;
+
+         /**
+          * Unsubscribe Wi-Fi rssi change events.
+          *
+          * <p>All callback functions will be deregistered If there is no specific callback parameter.</p>
+          *
+          * @since 7
+          * @permission {@code ohos.permission.GET_WIFI_INFO}
+          */
+         off(type: "wifiRssiChange", callback?: Callback<number>): void;
+
+        /**
+         * Subscribe Wi-Fi hotspot state change events.
+         *
+         * @return Returns 0: inactive, 1: active, 2: activating, 3: deactivating
+         * @since 7
+         */
+         on(type: "hotspotStateChange", callback: Callback<number>): void;
+
+         /**
+          * Unsubscribe Wi-Fi hotspot state change events.
+          *
+          * <p>All callback functions will be deregistered If there is no specific callback parameter.</p>
+          *
+          * @since 7
+         */
+         off(type: "hotspotStateChange", callback?: Callback<number>): void;
+
+         /**
+          * Subscribe Wi-Fi hotspot sta join events.
+          *
+          * @return Returns StationInfo
+          * @since 7
+          * @systemapi Hide this for inner system use.
+          */
+         on(type: "hotspotStaJoin", callback: Callback<StationInfo>): void;
+
+         /**
+          * Unsubscribe Wi-Fi hotspot sta join events.
+          *
+          * <p>All callback functions will be deregistered If there is no specific callback parameter.</p>
+          *
+          * @since 7
+          * @systemapi Hide this for inner system use.
+          */
+         off(type: "hotspotStaJoin", callback?: Callback<StationInfo>): void;
+
+         /**
+          * Subscribe Wi-Fi hotspot sta leave events.
+          *
+          * @return Returns {@link #StationInfo} object
+          * @since 7
+          * @systemapi Hide this for inner system use.
+          */
+         on(type: "hotspotStaLeave", callback: Callback<StationInfo>): void;
+
+         /**
+          * Unsubscribe Wi-Fi hotspot sta leave events.
+          *
+          * @return Returns {@link #StationInfo} object
+          * @since 7
+          * @systemapi Hide this for inner system use.
+          */
+         off(type: "hotspotStaLeave", callback?: Callback<StationInfo>): void;
+    }
+
     /**
      * Wi-Fi device configuration information.
      *
-     * @devices phone, tablet
      * @since 6
-     * @hide SystemApi
+     * @systemapi Hide this for inner system use.
      */
     interface WifiDeviceConfig {
         /** Wi-Fi SSID: the maximum length is 32 */
@@ -158,7 +506,6 @@ declare namespace wifi {
     /**
      * Describes the scanned Wi-Fi information.
      *
-     * @devices phone, tablet
      * @since 6
      */
     interface WifiScanInfo {
@@ -174,7 +521,7 @@ declare namespace wifi {
         /** Received signal strength indicator (RSSI) */
         rssi: number;
 
-        /** Frequency band */
+        /** Frequency band, 1: 2.4G, 2: 5G */
         band: number;
 
         /** Frequency */
@@ -187,7 +534,6 @@ declare namespace wifi {
     /**
      * Describes the wifi security type.
      *
-     * @devices phone, tablet
      * @since 6
      */
     enum WifiSecurityType {
@@ -197,6 +543,205 @@ declare namespace wifi {
         WIFI_SEC_TYPE_PSK = 3, /* Pre-shared key (PSK) */
         WIFI_SEC_TYPE_SAE = 4, /* Simultaneous Authentication of Equals (SAE) */
     }
+
+    /**
+     * Wi-Fi connection information.
+     *
+     * @since 7
+     */
+    interface WifiLinkedInfo {
+        /** The SSID of the Wi-Fi hotspot */
+        ssid: string;
+
+        /** The BSSID of the Wi-Fi hotspot */
+        bssid: string;
+
+        /** The ID(uniquely identifies) of a Wi-Fi connection. */
+        /* @systemapi */
+        networkId: number;
+
+        /** The RSSI(dBm) of a Wi-Fi access point. */
+        rssi: number;
+
+        /** The frequency band of a Wi-Fi access point. */
+        band: number;
+
+        /** The speed of a Wi-Fi access point. */
+        linkSpeed: number;
+
+        /** The frequency of a Wi-Fi access point. */
+        frequency: number;
+
+        /** Whether the SSID of the access point (AP) of this Wi-Fi connection is hidden. */
+        isHidden: boolean;
+
+        /** Whether this Wi-Fi connection restricts the data volume. */
+        isRestricted: boolean;
+
+        /** The load value of this Wi-Fi connection. A greater value indicates a higher load. */
+        /* @systemapi */
+        chload: number;
+
+        /** The signal-to-noise ratio (SNR) of this Wi-Fi connection. */
+        /* @systemapi */
+        snr: number;
+
+        /** The Wi-Fi MAC address of a device. */
+        macAddress: string;
+
+        /** The IP address of this Wi-Fi connection. */
+        ipAddress: number;
+
+        /** The state of the supplicant of this Wi-Fi connection. */
+        /* @systemapi */
+        suppState: SuppState;
+
+        /** The state of this Wi-Fi connection. */
+        connState: ConnState;
+    }
+
+    /**
+     * Wi-Fi IP information.
+     *
+     * @since 7
+     */
+    interface IpInfo {
+        /** The IP address of the Wi-Fi connection */
+        ipAddress: number;
+
+        /** The gateway of the Wi-Fi connection */
+        gateway: number;
+
+        /** The network mask of the Wi-Fi connection */
+        netmask: number;
+
+        /** The primary DNS server IP address of the Wi-Fi connection */
+        primaryDns: number;
+
+        /** The secondary DNS server IP address of the Wi-Fi connection */
+        secondDns: number;
+
+        /** The DHCP server IP address of the Wi-Fi connection */
+        serverIp: number;
+
+        /** The IP address lease duration of the Wi-Fi connection */
+        leaseDuration: number;
+    }
+
+    /**
+     * Wi-Fi hotspot configuration information.
+     *
+     * @since 7
+     * @systemapi
+     */
+    interface HotspotConfig {
+        /** The SSID of the Wi-Fi hotspot */
+        ssid: string;
+
+        /** The encryption mode of the Wi-Fi hotspot */
+        securityType: WifiSecurityType;
+
+        /** The frequency band of the Wi-Fi hotspot */
+        band: number;
+
+        /** The password of the Wi-Fi hotspot */
+        preSharedKey: string;
+
+        /** The maximum number of connections allowed by the Wi-Fi hotspot */
+        maxConn: number;
+    }
+
+    /**
+     * Wi-Fi station information.
+     *
+     * @since 7
+     * @systemapi
+     */
+    interface StationInfo {
+        /** the network name of the Wi-Fi client */
+        name: string;
+
+        /** The MAC address of the Wi-Fi client */
+        macAddress: string;
+
+        /** The IP address of the Wi-Fi client */
+        ipAddress: string;
+    }
+
+    /**
+     * The state of the supplicant enumeration.
+     *
+     * @since 7
+     * @systemapi
+     */
+    export enum SuppState {
+        /** The supplicant is not associated with or is disconnected from the AP. */
+        DISCONNECTED,
+
+        /** The network interface is disabled. */
+        INTERFACE_DISABLED,
+
+        /** The supplicant is disabled. */
+        INACTIVE,
+
+        /** The supplicant is scanning for a Wi-Fi connection. */
+        SCANNING,
+
+        /** The supplicant is authenticating with a specified AP. */
+        AUTHENTICATING,
+
+        /** The supplicant is associating with a specified AP. */
+        ASSOCIATING,
+
+        /** The supplicant is associated with a specified AP. */
+        ASSOCIATED,
+
+        /** The four-way handshake is ongoing. */
+        FOUR_WAY_HANDSHAKE,
+
+        /** The group handshake is ongoing. */
+        GROUP_HANDSHAKE,
+
+        /** All authentication is completed. */
+        COMPLETED,
+
+        /** Failed to establish a connection to the supplicant. */
+        UNINITIALIZED,
+
+        /** The supplicant is in an unknown or invalid state. */
+        INVALID
+    }
+
+    /**
+     * The state of Wi-Fi connection enumeration.
+     *
+     * @since 7
+     */
+    export enum ConnState {
+        /** The device is searching for an available AP. */
+        SCANNING,
+
+        /** The Wi-Fi connection is being set up. */
+        CONNECTING,
+
+        /** The Wi-Fi connection is being authenticated. */
+        AUTHENTICATING,
+
+        /** The IP address of the Wi-Fi connection is being obtained. */
+        OBTAINING_IPADDR,
+
+        /** The Wi-Fi connection has been set up. */
+        CONNECTED,
+
+        /** The Wi-Fi connection is being torn down. */
+        DISCONNECTING,
+
+        /** The Wi-Fi connection has been torn down. */
+        DISCONNECTED,
+
+        /** Failed to set up the Wi-Fi connection. */
+        UNKNOWN
+    }
 }
 
 export default wifi;