diff --git a/api/@ohos.inputMethodSubtype.d.ts b/api/@ohos.inputMethodSubtype.d.ts
new file mode 100644
index 0000000000000000000000000000000000000000..8927023d5784db3d4a97e15d86fe9a5dc4cc67ec
--- /dev/null
+++ b/api/@ohos.inputMethodSubtype.d.ts
@@ -0,0 +1,84 @@
+/*
+ * Copyright (c) 2022 Huawei Device Co., Ltd.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * Input method subtype
+ * @since 9
+ * @syscap SystemCapability.MiscServices.InputMethodFramework
+ */
+ export default interface InputMethodSubtype {
+    /**
+     * The label of input method subtype.
+     * @since 9
+     * @syscap SystemCapability.MiscServices.InputMethodFramework
+     */
+    readonly label?: string;
+
+    /**
+     * The name of input method subtype.
+     * @since 9
+     * @syscap SystemCapability.MiscServices.InputMethodFramework
+     */
+    readonly name: string;
+
+    /**
+     * The id of input method subtype.
+     * @since 9
+     * @syscap SystemCapability.MiscServices.InputMethodFramework
+     */
+    readonly id: string;
+
+    /**
+     * The mode of input method subtype.
+     * @since 9
+     * @syscap SystemCapability.MiscServices.InputMethodFramework
+     */
+    readonly mode?: 'upper'|'lower';
+
+    /**
+     * The locale of input method subtype.
+     * @since 9
+     * @syscap SystemCapability.MiscServices.InputMethodFramework
+     */
+    readonly locale: string;
+
+    /**
+     * The language of input method subtype.
+     * @since 9
+     * @syscap SystemCapability.MiscServices.InputMethodFramework
+     */
+    readonly language: string;
+
+    /**
+     * The icon of input method subtype.
+     * @since 9
+     * @syscap SystemCapability.MiscServices.InputMethodFramework
+     */
+    readonly icon?: string;
+
+    /**
+     * The icon id of input method subtype.
+     * @since 9
+     * @syscap SystemCapability.MiscServices.InputMethodFramework
+     */
+    readonly iconId?: number;
+
+    /**
+     * The extra info of input method subtype.
+     * @since 9
+     * @syscap SystemCapability.MiscServices.InputMethodFramework
+     */
+    extra: object;
+}
\ No newline at end of file
diff --git a/api/@ohos.inputmethod.d.ts b/api/@ohos.inputmethod.d.ts
index a5d217b36d7813e069b75a38aa037c79a1201249..b551539641e0cf31f9e9d55d2575d4b930b6521b 100644
--- a/api/@ohos.inputmethod.d.ts
+++ b/api/@ohos.inputmethod.d.ts
@@ -14,36 +14,155 @@
  */
 
 import {AsyncCallback} from './basic';
+import InputMethodSubtype from './@ohos.inputMethodSubtype';
 
 /**
- * inputmethod
+ * Input method
  *
+ * @since 6
  * @syscap SystemCapability.MiscServices.InputMethodFramework
  */
 declare namespace inputMethod {
     /**
-     * keyboard max number
+     * Errorcode 201. The permissions check fails.
+     * @syscap SystemCapability.MiscServices.InputMethodFramework
+     * @since 9
+     */
+    const EXCEPTION_PERMISSION: number;
+
+    /**
+     * Errorcode 401. The parameters check fails.
+     * @syscap SystemCapability.MiscServices.InputMethodFramework
+     * @since 9
+     */
+    const EXCEPTION_PARAMCHECK: number;
+
+    /**
+     * Errorcode 801. Call unsupported api.
+     * @syscap SystemCapability.MiscServices.InputMethodFramework
+     * @since 9
+     */
+    const EXCEPTION_UNSUPPORTED: number;
+
+    /**
+     * Errorcode 12800001. Package manager error.
+     * @syscap SystemCapability.MiscServices.InputMethodFramework
+     * @since 9
+     */
+    const EXCEPTION_PACKAGEMANAGER: number;
+
+    /**
+     * Errorcode 12800002. Input method engine error.
+     * @syscap SystemCapability.MiscServices.InputMethodFramework
+     * @since 9
+     */
+    const EXCEPTION_IMENGINE: number;
+
+    /**
+     * Errorcode 12800003. Input method client error.
+     * @syscap SystemCapability.MiscServices.InputMethodFramework
+     * @since 9
+     */
+    const EXCEPTION_IMCLIENT: number;
+
+    /**
+     * Errorcode 12800004. Key event processing error.
+     * @syscap SystemCapability.MiscServices.InputMethodFramework
+     * @since 9
+     */
+    const EXCEPTION_KEYEVENT: number;
+
+    /**
+     * Errorcode 12800005. Configuration persisting error.
+     * @syscap SystemCapability.MiscServices.InputMethodFramework
+     * @since 9
+     */
+    const EXCEPTION_CONFPERSIST: number;
+
+    /**
+     * Errorcode 12800006. Input method controller error.
+     * @syscap SystemCapability.MiscServices.InputMethodFramework
+     * @since 9
+     */
+    const EXCEPTION_CONTROLLER: number;
+
+    /**
+     * Errorcode 12800007. Input method settings extension error.
+     * @syscap SystemCapability.MiscServices.InputMethodFramework
+     * @since 9
+     */
+    const EXCEPTION_SETTINGS: number;
+
+    /**
+     * Errorcode 12800008. Input method manager service error.
+     * @syscap SystemCapability.MiscServices.InputMethodFramework
+     * @since 9
+     */
+    const EXCEPTION_IMMS: number;
+
+    /**
+     * Errorcode 12899999. Others error.
+     * @syscap SystemCapability.MiscServices.InputMethodFramework
+     * @since 9
+     */
+    const EXCEPTION_OTHERS: number;
+
+    /**
+     * Keyboard max number
      * @since 8
      */
     const MAX_TYPE_NUM: number
 
     /**
-     * input method setting
+     * Input method setting
      * @since 8
+     * @deprecated since 9
+     * @useinstead ohos.inputmethod.getController
      */
     function getInputMethodSetting(): InputMethodSetting;
 
     /**
-     * input method controller
+     * Input method controller
      * @since 6
+     * @deprecated since 9
+     * @useinstead ohos.inputmethod.getController
      */
     function getInputMethodController(): InputMethodController;
 
+    /**
+     * Input method setting
+     * @since 9
+     * @return :-
+     * @throws {BusinessError} 201 - permissions check fails.
+     * @throws {BusinessError} 401 - parameter error.
+     * @throws {BusinessError} 12800007 - settings extension error.
+     * @syscap SystemCapability.MiscServices.InputMethodFramework
+     * @StageModelOnly
+     */
+     function getSetting(): InputMethodSetting;
+
+    /**
+     * Input method controller
+     * @since 9
+     * @return :-
+     * @throws {BusinessError} 201 - permissions check fails.
+     * @throws {BusinessError} 401 - parameter error.
+     * @throws {BusinessError} 12800006 - input method controller error.
+     * @syscap SystemCapability.MiscServices.InputMethodFramework
+     * @StageModelOnly
+     */
+    function getController(): InputMethodController;
+
     /**
      * Switch input method
      * @since 9
      * @param target Indicates the input method which will replace the current one
-     * @return -
+     * @return :-
+     * @permission ohos.permission.CONNECT_IME_ABILITY
+     * @throws {BusinessError} 201 - permissions check fails.
+     * @throws {BusinessError} 401 - parameter error.
+     * @throws {BusinessError} 12800007 - settings extension error.
+     * @throws {BusinessError} 12800005 - configuration persisting error.
      * @syscap SystemCapability.MiscServices.InputMethodFramework
      * @StageModelOnly
      */
@@ -53,60 +172,268 @@ declare namespace inputMethod {
      * Switch input method
      * @since 9
      * @param target Indicates the input method which will replace the current one
-     * @return -
+     * @return :-
+     * @permission ohos.permission.CONNECT_IME_ABILITY
+     * @throws {BusinessError} 201 - permissions check fails.
+     * @throws {BusinessError} 401 - parameter error.
+     * @throws {BusinessError} 12800007 - settings extension error.
+     * @throws {BusinessError} 12800005 - configuration persisting error.
      * @syscap SystemCapability.MiscServices.InputMethodFramework
      * @StageModelOnly
      */
     function switchInputMethod(target: InputMethodProperty): Promise<boolean>;
-    
+
     /**
      * Get current input method
      * @since 9
      * @return The InputMethodProperty object of the current input method
+     * @throws {BusinessError} 201 - permissions check fails.
+     * @throws {BusinessError} 401 - parameter error.
+     * @throws {BusinessError} 12800007 - settings extension error.
      * @syscap SystemCapability.MiscServices.InputMethodFramework
      * @StageModelOnly
      */
     function getCurrentInputMethod(): InputMethodProperty;
 
+    /**
+     * Switch current input method subtype
+     * @since 9
+     * @param target Indicates the input method subtype which will replace the current one
+     * @return success or fail
+     * @permission ohos.permission.CONNECT_IME_ABILITY
+     * @throws {BusinessError} 201 - permissions check fails.
+     * @throws {BusinessError} 401 - parameter error.
+     * @throws {BusinessError} 12800005 - configuration persisting error.
+     * @throws {BusinessError} 12800007 - settings extension error.
+     * @syscap SystemCapability.MiscServices.InputMethodFramework
+     * @StageModelOnly
+     */
+    function switchCurrentInputMethodSubtype(target: InputMethodSubtype, callback: AsyncCallback<boolean>): void;
+
+    /**
+     * Switch current input method subtype
+     * @since 9
+     * @param target Indicates the input method subtype which will replace the current one
+     * @return success or fail
+     * @permission ohos.permission.CONNECT_IME_ABILITY
+     * @throws {BusinessError} 201 - permissions check fails.
+     * @throws {BusinessError} 401 - parameter error.
+     * @throws {BusinessError} 12800005 - configuration persisting error.
+     * @throws {BusinessError} 12800007 - settings extension error.
+     * @syscap SystemCapability.MiscServices.InputMethodFramework
+     * @StageModelOnly
+     */
+    function switchCurrentInputMethodSubtype(target: InputMethodSubtype): Promise<boolean>;
+
+    /**
+     * Get the current input method subtype
+     * @since 9
+     * @return The InputMethodSubtype object of the current input method
+     * @throws {BusinessError} 201 - permissions check fails.
+     * @throws {BusinessError} 401 - parameter error.
+     * @throws {BusinessError} 12800007 - settings extension error.
+     * @syscap SystemCapability.MiscServices.InputMethodFramework
+     * @StageModelOnly
+     */
+    function getCurrentInputMethodSubtype(): InputMethodSubtype;
+
+    /**
+     * Switch input method and subtype
+     * @since 9
+     * @param inputMethodProperty Indicates the target input method
+     * @param inputMethodSubtype Indicates the target input method subtype
+     * @return :-
+     * @permission ohos.permission.CONNECT_IME_ABILITY
+     * @throws {BusinessError} 201 - permissions check fails.
+     * @throws {BusinessError} 401 - parameter error.
+     * @throws {BusinessError} 12800005 - configuration persisting error.
+     * @throws {BusinessError} 12800007 - settings extension error.
+     * @syscap SystemCapability.MiscServices.InputMethodFramework
+     * @StageModelOnly
+     */
+    function switchCurrentInputMethodAndSubtype(inputMethodProperty: InputMethodProperty, inputMethodSubtype: InputMethodSubtype, callback: AsyncCallback<boolean>): void;
+
+    /**
+     * Switch input method and subtype
+     * @since 9
+     * @param inputMethodProperty Indicates the target input method
+     * @param inputMethodSubtype Indicates the target input method subtype
+     * @return :-
+     * @permission ohos.permission.CONNECT_IME_ABILITY
+     * @throws {BusinessError} 201 - permissions check fails.
+     * @throws {BusinessError} 401 - parameter error.
+     * @throws {BusinessError} 12800005 - configuration persisting error.
+     * @throws {BusinessError} 12800007 - settings extension error.
+     * @syscap SystemCapability.MiscServices.InputMethodFramework
+     * @StageModelOnly
+     */
+    function switchCurrentInputMethodAndSubtype(inputMethodProperty: InputMethodProperty, inputMethodSubtype: InputMethodSubtype): Promise<boolean>;
+
     /**
      * @since 8
      */
     interface InputMethodSetting {
+        /**
+         * Subscribe input method or subtype change
+         * @since 9
+         * @param type Indicates the event type
+         * @return :-
+         * @syscap SystemCapability.MiscServices.InputMethodFramework
+         */
+        on(type: 'imeChange', callback: (inputMethodProperty: InputMethodProperty, inputMethodSubtype: InputMethodSubtype) => void): void;
+
+        /**
+         * Unsubscribe input method or subtype change
+         * @since 9
+         * @param type Indicates the event type
+         * @return :-
+         * @syscap SystemCapability.MiscServices.InputMethodFramework
+         */
+         off(type: 'imeChange', callback?: (inputMethodProperty: InputMethodProperty, inputMethodSubtype: InputMethodSubtype) => void): void;
+
+        /**
+         * List subtype of the specified input method
+         * @since 9
+         * @param inputMethodProperty Indicates the specified input method
+         * @return :-
+         * @throws {BusinessError} 201 - permissions check fails.
+         * @throws {BusinessError} 401 - parameter error.
+         * @throws {BusinessError} 12800001 - package manager error.
+         * @throws {BusinessError} 12800008 - input method manager service error.
+         * @syscap SystemCapability.MiscServices.InputMethodFramework
+         * @StageModelOnly
+         */
+        listInputMethodSubtype(inputMethodProperty: InputMethodProperty, callback: AsyncCallback<Array<InputMethodSubtype>>): void;
+
+        /**
+         * List subtype of the specified input method
+         * @since 9
+         * @param inputMethodProperty Indicates the specified input method
+         * @return :-
+         * @throws {BusinessError} 201 - permissions check fails.
+         * @throws {BusinessError} 401 - parameter error.
+         * @throws {BusinessError} 12800001 - package manager error.
+         * @throws {BusinessError} 12800008 - input method manager service error.
+         * @syscap SystemCapability.MiscServices.InputMethodFramework
+         * @StageModelOnly
+         */
+        listInputMethodSubtype(inputMethodProperty: InputMethodProperty): Promise<Array<InputMethodSubtype>>;
+
+        /**
+         * List subtype of current input method
+         * @since 9
+         * @return :-
+         * @throws {BusinessError} 201 - permissions check fails.
+         * @throws {BusinessError} 401 - parameter error.
+         * @throws {BusinessError} 12800001 - package manager error.
+         * @throws {BusinessError} 12800008 - input method manager service error.
+         * @syscap SystemCapability.MiscServices.InputMethodFramework
+         * @StageModelOnly
+         */
+        listCurrentInputMethodSubtype(callback: AsyncCallback<Array<InputMethodSubtype>>): void;
+
+        /**
+         * List subtype of current input method
+         * @since 9
+         * @return :-
+         * @throws {BusinessError} 201 - permissions check fails.
+         * @throws {BusinessError} 401 - parameter error.
+         * @throws {BusinessError} 12800001 - package manager error.
+         * @throws {BusinessError} 12800008 - input method manager service error.
+         * @syscap SystemCapability.MiscServices.InputMethodFramework
+         * @StageModelOnly
+         */
+        listCurrentInputMethodSubtype(): Promise<Array<InputMethodSubtype>>;
+
         /**
          * List input methods
          * @since 9
          * @param enable :
-         *     if true, collect enabled input methods.
-         *     if false, collect disabled input methods.
-         * @return -
+         *     If true, collect enabled input methods.
+         *     If false, collect disabled input methods.
+         * @return :-
+         * @throws {BusinessError} 201 - permissions check fails.
+         * @throws {BusinessError} 401 - parameter error.
+         * @throws {BusinessError} 12800001 - package manager error.
+         * @throws {BusinessError} 12800008 - input method manager service error.
          * @syscap SystemCapability.MiscServices.InputMethodFramework
          * @StageModelOnly
          */
-        listInputMethod(enable: boolean, callback: AsyncCallback<Array<InputMethodProperty>>): void;
+        getInputMethods(enable: boolean, callback: AsyncCallback<Array<InputMethodProperty>>): void;
 
         /**
          * List input methods
          * @since 9
          * @param enable :
-         *     if true, collect enabled input methods.
-         *     if false, collect disabled input methods.
-         * @return -
+         *     If true, collect enabled input methods.
+         *     If false, collect disabled input methods.
+         * @return :-
+         * @throws {BusinessError} 201 - permissions check fails.
+         * @throws {BusinessError} 401 - parameter error.
+         * @throws {BusinessError} 12800001 - package manager error.
+         * @throws {BusinessError} 12800008 - input method manager service error.
          * @syscap SystemCapability.MiscServices.InputMethodFramework
          * @StageModelOnly
          */
-        listInputMethod(enable: boolean): Promise<Array<InputMethodProperty>>;
+        getInputMethods(enable: boolean): Promise<Array<InputMethodProperty>>;
 
         /**
          * @since 8
+         * @deprecated since 9
+         * @useinstead ohos.inputmethod.InputMethodSetting.getInputMethods
          */
         listInputMethod(callback: AsyncCallback<Array<InputMethodProperty>>): void;
         /**
          * @since 8
+         * @deprecated since 9
+         * @useinstead ohos.inputmethod.InputMethodSetting.getInputMethods
          */
         listInputMethod(): Promise<Array<InputMethodProperty>>;
 
+        /**
+         * Show input method setting extension dialog
+         * @since 9
+         * @return :-
+         * @permission ohos.permission.CONNECT_IME_ABILITY
+         * @throws {BusinessError} 201 - permissions check fails.
+         * @throws {BusinessError} 401 - parameter error.
+         * @throws {BusinessError} 12800001 - package manager error.
+         * @throws {BusinessError} 12800007 - settings extension error.
+         * @throws {BusinessError} 12800005 - configuration persisting error.
+         * @throws {BusinessError} 12800008 - input method manager service error.
+         * @syscap SystemCapability.MiscServices.InputMethodFramework
+         * @StageModelOnly
+         */
+        showOptionalInputMethods(callback: AsyncCallback<boolean>): void;
+
+        /**
+         * Show input method setting extension dialog
+         * @since 9
+         * @return -
+         * @permission ohos.permission.CONNECT_IME_ABILITY
+         * @throws {BusinessError} 201 - permissions check fails.
+         * @throws {BusinessError} 401 - parameter error.
+         * @throws {BusinessError} 12800001 - package manager error.
+         * @throws {BusinessError} 12800005 - configuration persisting error.
+         * @throws {BusinessError} 12800007 - settings extension error.
+         * @throws {BusinessError} 12800008 - input method manager service error.
+         * @syscap SystemCapability.MiscServices.InputMethodFramework
+         * @StageModelOnly
+         */
+        showOptionalInputMethods(): Promise<boolean>;
+
+        /**
+         * @since 8
+         * @deprecated since 9
+         * @useinstead ohos.inputmethod.InputMethodSetting.showOptionalInputMethods
+         */
         displayOptionalInputMethod(callback: AsyncCallback<void>): void;
 
+        /**
+         * @since 8
+         * @deprecated since 9
+         * @useinstead ohos.inputmethod.InputMethodSetting.showOptionalInputMethods
+         */
         displayOptionalInputMethod(): Promise<void>;
     }
 
@@ -114,15 +441,59 @@ declare namespace inputMethod {
      * @since 6
      */
     interface InputMethodController {
+        /**
+         * Stop input
+         * @since 9
+         * @return :-
+         * @throws {BusinessError} 201 - permissions check fails.
+         * @throws {BusinessError} 401 - parameter error.
+         * @throws {BusinessError} 12800002 - input method engine error.
+         * @throws {BusinessError} 12800008 - input method manager service error.
+         * @syscap SystemCapability.MiscServices.InputMethodFramework
+         */
+        stopInputSession(callback: AsyncCallback<boolean>): void;
+
+        /**
+         * Stop input
+         * @since 9
+         * @return :-
+         * @throws {BusinessError} 201 - permissions check fails.
+         * @throws {BusinessError} 401 - parameter error.
+         * @throws {BusinessError} 12800002 - input method engine error.
+         * @throws {BusinessError} 12800008 - input method manager service error.
+         * @syscap SystemCapability.MiscServices.InputMethodFramework
+         */
+        stopInputSession(): Promise<boolean>;
+
+        /**
+         * Stop input
+         * @since 6
+         * @deprecated since 9
+         * @useinstead ohos.inputmethod.InputMethodController.stopInputSession
+         * @return :-
+         * @syscap SystemCapability.MiscServices.InputMethodFramework
+        */
         stopInput(callback: AsyncCallback<boolean>): void;
 
+        /**
+         * Stop input
+         * @since 6
+         * @deprecated since 9
+         * @useinstead ohos.inputmethod.InputMethodController.stopInputSession
+         * @return :-
+         * @syscap SystemCapability.MiscServices.InputMethodFramework
+         */
         stopInput(): Promise<boolean>;
 
         /**
          * Show soft keyboard
          * @since 9
-         * @param callback
          * @return :-
+         * @permission ohos.permission.CONNECT_IME_ABILITY
+         * @throws {BusinessError} 201 - permissions check fails.
+         * @throws {BusinessError} 401 - parameter error.
+         * @throws {BusinessError} 12800002 - input method engine error.
+         * @throws {BusinessError} 12800008 - input method manager service error.
          * @syscap SystemCapability.MiscServices.InputMethodFramework
         */
         showSoftKeyboard(callback: AsyncCallback<void>): void;
@@ -131,36 +502,107 @@ declare namespace inputMethod {
          * Show soft keyboard
          * @since 9
          * @return :-
+         * @permission ohos.permission.CONNECT_IME_ABILITY
+         * @throws {BusinessError} 201 - permissions check fails.
+         * @throws {BusinessError} 401 - parameter error.
+         * @throws {BusinessError} 12800002 - input method engine error.
+         * @throws {BusinessError} 12800008 - input method manager service error.
          * @syscap SystemCapability.MiscServices.InputMethodFramework
          */
         showSoftKeyboard():Promise<void>;
-         
+
         /**
          * Hide soft keyboard
          * @since 9
-         * @param callback
          * @return :-
+         * @permission ohos.permission.CONNECT_IME_ABILITY
+         * @throws {BusinessError} 201 - permissions check fails.
+         * @throws {BusinessError} 401 - parameter error.
+         * @throws {BusinessError} 12800002 - input method engine error.
+         * @throws {BusinessError} 12800008 - input method manager service error.
          * @syscap SystemCapability.MiscServices.InputMethodFramework
          */
         hideSoftKeyboard(callback: AsyncCallback<void>): void;
-         
+
         /**
          * Hide soft keyboard
          * @since 9
          * @return :-
+         * @permission ohos.permission.CONNECT_IME_ABILITY
+         * @throws {BusinessError} 201 - permissions check fails.
+         * @throws {BusinessError} 401 - parameter error.
+         * @throws {BusinessError} 12800002 - input method engine error.
+         * @throws {BusinessError} 12800008 - input method manager service error.
          * @syscap SystemCapability.MiscServices.InputMethodFramework
          */
         hideSoftKeyboard():Promise<void>;
     }
 
     /**
-     * input method info
+     * input method property
      * @since 8
      */
     interface InputMethodProperty {
+        /**
+         * The name of input method
+         * @since 8
+         * @deprecated since 9
+         * @useinstead ohos.inputmethod.InputMethodProperty.name
+         * @syscap SystemCapability.MiscServices.InputMethodFramework
+         */
         readonly packageName: string;
+
+        /**
+         * The id of input method
+         * @since 8
+         * @deprecated since 9
+         * @useinstead ohos.inputmethod.InputMethodProperty.id
+         * @syscap SystemCapability.MiscServices.InputMethodFramework
+         */
         readonly methodId: string;
+
+        /**
+         * The name of input method
+         * @since 9
+         * @syscap SystemCapability.MiscServices.InputMethodFramework
+         */
+         readonly name?: string;
+
+         /**
+          * The id of input method
+          * @since 9
+          * @syscap SystemCapability.MiscServices.InputMethodFramework
+          */
+         readonly id?: string;
+
+        /**
+         * The label of input method
+         * @since 9
+         * @syscap SystemCapability.MiscServices.InputMethodFramework
+         */
+        readonly label?: string;
+
+        /**
+         * The icon of input method
+         * @since 9
+         * @syscap SystemCapability.MiscServices.InputMethodFramework
+         */
+        readonly icon?: string;
+
+        /**
+         * The icon id of input method
+         * @since 9
+         * @syscap SystemCapability.MiscServices.InputMethodFramework
+         */
+        readonly iconId?: number;
+
+        /**
+         * The extra info of input method
+         * @since 9
+         * @syscap SystemCapability.MiscServices.InputMethodFramework
+         */
+        extra?: object;
     }
 }
 
-export default inputMethod;
+export default inputMethod;
\ No newline at end of file
diff --git a/api/@ohos.inputmethodengine.d.ts b/api/@ohos.inputmethodengine.d.ts
index d9e1407055ce6900b2e081ceca825ba42d916f8f..9046751db98fad6e1302c64e3a4c694d98a15538 100644
--- a/api/@ohos.inputmethodengine.d.ts
+++ b/api/@ohos.inputmethodengine.d.ts
@@ -14,43 +14,169 @@
  */
 
 import {AsyncCallback} from './basic';
+import InputMethodSubtype from './@ohos.inputMethodSubtype';
 
 /**
- * inputmethodengine
+ * Input method engine
  *
  * @since 8
  * @syscap SystemCapability.MiscServices.InputMethodFramework
  */
 declare namespace inputMethodEngine {
+    /**
+     * @since 8
+     * @syscap SystemCapability.MiscServices.InputMethodFramework
+     */
     const ENTER_KEY_TYPE_UNSPECIFIED: number;
+
+    /**
+     * @since 8
+     * @syscap SystemCapability.MiscServices.InputMethodFramework
+     */
     const ENTER_KEY_TYPE_GO: number;
+
+    /**
+     * @since 8
+     * @syscap SystemCapability.MiscServices.InputMethodFramework
+     */
     const ENTER_KEY_TYPE_SEARCH: number;
+
+    /**
+     * @since 8
+     * @syscap SystemCapability.MiscServices.InputMethodFramework
+     */
     const ENTER_KEY_TYPE_SEND: number;
+
+    /**
+     * @since 8
+     * @syscap SystemCapability.MiscServices.InputMethodFramework
+     */
     const ENTER_KEY_TYPE_NEXT: number;
+
+    /**
+     * @since 8
+     * @syscap SystemCapability.MiscServices.InputMethodFramework
+     */
     const ENTER_KEY_TYPE_DONE: number;
+
+    /**
+     * @since 8
+     * @syscap SystemCapability.MiscServices.InputMethodFramework
+     */
     const ENTER_KEY_TYPE_PREVIOUS: number;
 
+    /**
+     * @since 8
+     * @syscap SystemCapability.MiscServices.InputMethodFramework
+     */
     const PATTERN_NULL: number;
+
+    /**
+     * @since 8
+     * @syscap SystemCapability.MiscServices.InputMethodFramework
+     */
     const PATTERN_TEXT: number;
+
+    /**
+     * @since 8
+     * @syscap SystemCapability.MiscServices.InputMethodFramework
+     */
     const PATTERN_NUMBER: number;
+
+    /**
+     * @since 8
+     * @syscap SystemCapability.MiscServices.InputMethodFramework
+     */
     const PATTERN_PHONE: number;
+
+    /**
+     * @since 8
+     * @syscap SystemCapability.MiscServices.InputMethodFramework
+     */
     const PATTERN_DATETIME: number;
+
+    /**
+     * @since 8
+     * @syscap SystemCapability.MiscServices.InputMethodFramework
+     */
     const PATTERN_EMAIL: number;
+
+    /**
+     * @since 8
+     * @syscap SystemCapability.MiscServices.InputMethodFramework
+     */
     const PATTERN_URI: number;
+
+    /**
+     * @since 8
+     * @syscap SystemCapability.MiscServices.InputMethodFramework
+     */
     const PATTERN_PASSWORD: number;
 
+    /**
+     * @since 8
+     * @syscap SystemCapability.MiscServices.InputMethodFramework
+     */
     const FLAG_SELECTING: number;
+
+    /**
+     * @since 8
+     * @syscap SystemCapability.MiscServices.InputMethodFramework
+     */
     const FLAG_SINGLE_LINE: number;
 
+    /**
+     * @since 8
+     * @syscap SystemCapability.MiscServices.InputMethodFramework
+     */
     const DISPLAY_MODE_PART: number;
+
+    /**
+     * @since 8
+     * @syscap SystemCapability.MiscServices.InputMethodFramework
+     */
     const DISPLAY_MODE_FULL: number;
 
+    /**
+     * @since 8
+     * @syscap SystemCapability.MiscServices.InputMethodFramework
+     */
     const OPTION_ASCII: number;
+
+    /**
+     * @since 8
+     * @syscap SystemCapability.MiscServices.InputMethodFramework
+     */
     const OPTION_NONE: number;
+
+    /**
+     * @since 8
+     * @syscap SystemCapability.MiscServices.InputMethodFramework
+     */
     const OPTION_AUTO_CAP_CHARACTERS: number;
+
+    /**
+     * @since 8
+     * @syscap SystemCapability.MiscServices.InputMethodFramework
+     */
     const OPTION_AUTO_CAP_SENTENCES: number;
+
+    /**
+     * @since 8
+     * @syscap SystemCapability.MiscServices.InputMethodFramework
+     */
     const OPTION_AUTO_WORDS: number;
+
+    /**
+     * @since 8
+     * @syscap SystemCapability.MiscServices.InputMethodFramework
+     */
     const OPTION_MULTI_LINE: number;
+
+    /**
+     * @since 8
+     * @syscap SystemCapability.MiscServices.InputMethodFramework
+     */
     const OPTION_NO_FULLSCREEN: number;
 
     /**
@@ -82,33 +208,154 @@ declare namespace inputMethodEngine {
     const CURSOR_RIGHT: number;
 
     /**
-     * The window styles for inputmethod ability.
+     * The window styles for input method ability.
      * @since 9
      * @syscap SystemCapability.MiscServices.InputMethodFramework
      */
     const WINDOW_TYPE_INPUT_METHOD_FLOAT: number;
 
+    /**
+     * @since 9
+     * @return InputMethodAbility object of the current input method
+     * @throws {BusinessError} 201 - permissions check fails.
+     * @throws {BusinessError} 401 - parameter error.
+     * @throws {BusinessError} 801 - call unsupported api.
+     * @throws {BusinessError} 12800002 - input method engine error.
+     * @syscap SystemCapability.MiscServices.InputMethodFramework
+     */
+    function getInputMethodAbility(): InputMethodAbility;
+
+    /**
+     * @since 8
+     * @deprecated since 9
+     * @useinstead ohos.inputmethodengine.getInputMethodAbility
+     */
     function getInputMethodEngine(): InputMethodEngine;
 
+    /**
+     * @since 9
+     * @return KeyboardDelegate object of the current input method
+     * @throws {BusinessError} 201 - permissions check fails.
+     * @throws {BusinessError} 401 - parameter error.
+     * @throws {BusinessError} 12800002 - input method engine error.
+     * @syscap SystemCapability.MiscServices.InputMethodFramework
+     */
+    function getKeyboardDelegate(): KeyboardDelegate;
+
+    /**
+     * @since 8
+     * @deprecated since 9
+     * @useinstead ohos.inputmethodengine.getKeyboardDelegate
+     */
     function createKeyboardDelegate(): KeyboardDelegate;
 
+    /**
+     * @since 8
+     */
     interface KeyboardController {
+        /**
+         * @since 9
+         * @throws {BusinessError} 201 - permissions check fails.
+         * @throws {BusinessError} 401 - parameter error.
+         * @throws {BusinessError} 12800002 - input method engine error.
+         * @throws {BusinessError} 12800008 - input method manager service error.
+         * @syscap SystemCapability.MiscServices.InputMethodFramework
+         */
+        hide(callback: AsyncCallback<void>): void;
+
+        /**
+         * @since 9
+         * @throws {BusinessError} 201 - permissions check fails.
+         * @throws {BusinessError} 401 - parameter error.
+         * @throws {BusinessError} 12800002 - input method engine error.
+         * @throws {BusinessError} 12800008 - input method manager service error.
+         * @syscap SystemCapability.MiscServices.InputMethodFramework
+         */
+        hide(): Promise<void>;
+
+        /**
+         * @since 8
+         * @deprecated since 9
+         * @useinstead ohos.inputmethodengine.KeyboardController.hide
+         */
         hideKeyboard(callback: AsyncCallback<void>): void;
 
+        /**
+         * @since 8
+         * @deprecated since 9
+         * @useinstead ohos.inputmethodengine.KeyboardController.hide
+         */
         hideKeyboard(): Promise<void>;
     }
 
+    /**
+     * @since 8
+     */
     interface InputMethodEngine {
+        /**
+         * Subscribe 'inputStart'
+         * @since 8
+         * @param type inputStart
+         * @param callback give keyboard controller and text input client
+         * @return :-
+         */
         on(type: 'inputStart', callback: (kbController: KeyboardController, textInputClient: TextInputClient) => void): void;
+
+        /**
+         * Unsubscribe 'inputStart'
+         * @since 8
+         * @param type inputStart
+         * @param callback optional, give keyboard controller and text input client
+         * @return :-
+         */
         off(type: 'inputStart', callback?: (kbController: KeyboardController, textInputClient: TextInputClient) => void): void;
 
+        /**
+         * Subscribe 'keyboardShow'|'keyboardHide'
+         * @since 8
+         * @param type keyboardShow|keyboardHide
+         * @return :-
+         */
+        on(type: 'keyboardShow'|'keyboardHide', callback: () => void): void;
+
+        /**
+         * Unsubscribe 'keyboardShow'|'keyboardHide'
+         * @since 8
+         * @param type keyboardShow|keyboardHide
+         * @return :-
+         */
+        off(type: 'keyboardShow'|'keyboardHide', callback?: () => void): void;
+    }
+
+    /**
+     * @since 9
+     * @syscap SystemCapability.MiscServices.InputMethodFramework
+     */
+     interface InputMethodAbility {
+        /**
+         * Subscribe 'inputStart'
+         * @since 9
+         * @param type inputStart
+         * @param callback give keyboard controller and text input client
+         * @return :-
+         */
+        on(type: 'inputStart', callback: (kbController: KeyboardController, inputClient: InputClient) => void): void;
+
+        /**
+         * Unsubscribe 'inputStart'
+         * @since 9
+         * @param type inputStart
+         * @param callback optional, give keyboard controller and text input client
+         * @return :-
+         */
+        off(type: 'inputStart', callback?: (kbController: KeyboardController, inputClient: InputClient) => void): void;
+
         /**
          * Subscribe 'inputStop'.
          * @since 9
          * @syscap SystemCapability.MiscServices.InputMethodFramework
          * @param type inputStop
-         * @param callback
-         * @return -
+         * @return :-
          */
         on(type: 'inputStop', callback: () => void): void;
 
@@ -117,8 +364,7 @@ declare namespace inputMethodEngine {
          * @since 9
          * @syscap SystemCapability.MiscServices.InputMethodFramework
          * @param type inputStop
-         * @param callback
-         * @return -
+         * @return :-
          */
         off(type: 'inputStop', callback: () => void): void;
 
@@ -127,8 +373,7 @@ declare namespace inputMethodEngine {
          * @since 9
          * @syscap SystemCapability.MiscServices.InputMethodFramework
          * @param type setCallingWindow
-         * @param callback
-         * @return -
+         * @return :-
          */
         on(type: 'setCallingWindow', callback: (wid:number) => void): void;
 
@@ -137,41 +382,277 @@ declare namespace inputMethodEngine {
          * @since 9
          * @syscap SystemCapability.MiscServices.InputMethodFramework
          * @param type setCallingWindow
-         * @param callback
-         * @return -
+         * @return :-
          */
         off(type: 'setCallingWindow', callback: (wid:number) => void): void;
+
+        /**
+         * Subscribe 'keyboardShow'|'keyboardHide'
+         * @since 9
+         * @param type keyboardShow|keyboardHide
+         * @return :-
+         */
         on(type: 'keyboardShow'|'keyboardHide', callback: () => void): void;
+
+        /**
+         * Unsubscribe 'keyboardShow'|'keyboardHide'
+         * @since 9
+         * @param type keyboardShow|keyboardHide
+         * @return :-
+         */
         off(type: 'keyboardShow'|'keyboardHide', callback?: () => void): void;
+
+        /**
+         * Subscribe 'setSubtype'
+         * @since 9
+         * @return :-
+         * @syscap SystemCapability.MiscServices.InputMethodFramework
+         */
+        on(type: 'setSubtype', callback: (inputMethodSubtype: InputMethodSubtype) => void): void;
+
+        /**
+         * Unsubscribe 'setSubtype'
+         * @since 9
+         * @return :-
+         * @syscap SystemCapability.MiscServices.InputMethodFramework
+         */
+        off(ype: 'setSubtype', callback?: (inputMethodSubtype: InputMethodSubtype) => void): void;
     }
 
+    /**
+     * @since 8
+     * @deprecated since 9
+     * @useinstead ohos.inputmethodengine.InputClient
+     */
     interface TextInputClient {
+        /**
+         * @since 8
+         * @deprecated since 9
+         * @useinstead ohos.inputmethodengine.InputClient.sendKeyFunction
+         */
+        sendKeyFunction(action: number, callback: AsyncCallback<boolean>): void;
+
+        /**
+         * @since 8
+         * @deprecated since 9
+         * @useinstead ohos.inputmethodengine.InputClient.sendKeyFunction
+         */
+        sendKeyFunction(action: number): Promise<boolean>;
+
+        /**
+         * @since 8
+         * @deprecated since 9
+         * @useinstead ohos.inputmethodengine.InputClient.deleteForward
+         */
+        deleteForward(length: number, callback: AsyncCallback<boolean>): void;
+
+        /**
+         * @since 8
+         * @deprecated since 9
+         * @useinstead ohos.inputmethodengine.InputClient.deleteForward
+         */
+        deleteForward(length: number): Promise<boolean>;
+
+        /**
+         * @since 8
+         * @deprecated since 9
+         * @useinstead ohos.inputmethodengine.InputClient.deleteBackward
+         */
+        deleteBackward(length: number, callback: AsyncCallback<boolean>): void;
+
+        /**
+         * @since 8
+         * @deprecated since 9
+         * @useinstead ohos.inputmethodengine.InputClient.deleteBackward
+         */
+        deleteBackward(length: number): Promise<boolean>;
+
+        /**
+         * @since 8
+         * @deprecated since 9
+         * @useinstead ohos.inputmethodengine.InputClient.insertText
+         */
+        insertText(text: string, callback: AsyncCallback<boolean>): void;
+
+        /**
+         * @since 8
+         * @deprecated since 9
+         * @useinstead ohos.inputmethodengine.InputClient.insertText
+         */
+        insertText(text: string): Promise<boolean>;
+
+        /**
+         * @since 8
+         * @deprecated since 9
+         * @useinstead ohos.inputmethodengine.InputClient.getForward
+         */
+        getForward(length: number, callback: AsyncCallback<string>): void;
+
+        /**
+         * @since 8
+         * @deprecated since 9
+         * @useinstead ohos.inputmethodengine.InputClient.getForward
+         */
+        getForward(length: number): Promise<string>;
+
+        /**
+         * @since 8
+         * @deprecated since 9
+         * @useinstead ohos.inputmethodengine.InputClient.getBackward
+         */
+        getBackward(length: number, callback: AsyncCallback<string>): void;
+
+        /**
+         * @since 8
+         * @deprecated since 9
+         * @useinstead ohos.inputmethodengine.InputClient.getBackward
+         */
+        getBackward(length: number): Promise<string>;
+
+        /**
+         * @since 8
+         * @deprecated since 9
+         * @useinstead ohos.inputmethodengine.InputClient.getEditorAttribute
+         */
+        getEditorAttribute(callback: AsyncCallback<EditorAttribute>): void;
+
+        /**
+         * @since 8
+         * @deprecated since 9
+         * @useinstead ohos.inputmethodengine.InputClient.getEditorAttribute
+         */
+        getEditorAttribute(): Promise<EditorAttribute>;
+    }
+
+    /**
+     * @since 9
+     * @syscap SystemCapability.MiscServices.InputMethodFramework
+     */
+     interface InputClient {
+        /**
+         * @since 9
+         * @throws {BusinessError} 201 - permissions check fails.
+         * @throws {BusinessError} 401 - parameter error.
+         * @throws {BusinessError} 12800003 - input method client error.
+         * @syscap SystemCapability.MiscServices.InputMethodFramework
+         */
         sendKeyFunction(action: number, callback: AsyncCallback<boolean>): void;
 
+        /**
+         * @since 9
+         * @throws {BusinessError} 201 - permissions check fails.
+         * @throws {BusinessError} 401 - parameter error.
+         * @throws {BusinessError} 12800003 - input method client error.
+         * @syscap SystemCapability.MiscServices.InputMethodFramework
+         */
         sendKeyFunction(action: number): Promise<boolean>;
 
+        /**
+         * @since 9
+         * @throws {BusinessError} 201 - permissions check fails.
+         * @throws {BusinessError} 401 - parameter error.
+         * @throws {BusinessError} 12800003 - input method client error.
+         * @syscap SystemCapability.MiscServices.InputMethodFramework
+         */
         deleteForward(length: number, callback: AsyncCallback<boolean>): void;
 
+        /**
+         * @since 9
+         * @throws {BusinessError} 201 - permissions check fails.
+         * @throws {BusinessError} 401 - parameter error.
+         * @throws {BusinessError} 12800003 - input method client error.
+         * @syscap SystemCapability.MiscServices.InputMethodFramework
+         */
         deleteForward(length: number): Promise<boolean>;
 
+        /**
+         * @since 9
+         * @throws {BusinessError} 201 - permissions check fails.
+         * @throws {BusinessError} 401 - parameter error.
+         * @throws {BusinessError} 12800003 - input method client error.
+         * @syscap SystemCapability.MiscServices.InputMethodFramework
+         */
         deleteBackward(length: number, callback: AsyncCallback<boolean>): void;
 
+        /**
+         * @since 9
+         * @throws {BusinessError} 201 - permissions check fails.
+         * @throws {BusinessError} 401 - parameter error.
+         * @throws {BusinessError} 12800003 - input method client error.
+         * @syscap SystemCapability.MiscServices.InputMethodFramework
+         */
         deleteBackward(length: number): Promise<boolean>;
 
+        /**
+         * @since 9
+         * @throws {BusinessError} 201 - permissions check fails.
+         * @throws {BusinessError} 401 - parameter error.
+         * @throws {BusinessError} 12800003 - input method client error.
+         * @syscap SystemCapability.MiscServices.InputMethodFramework
+         */
         insertText(text: string, callback: AsyncCallback<boolean>): void;
 
+        /**
+         * @since 9
+         * @throws {BusinessError} 201 - permissions check fails.
+         * @throws {BusinessError} 401 - parameter error.
+         * @throws {BusinessError} 12800003 - input method client error.
+         * @syscap SystemCapability.MiscServices.InputMethodFramework
+         */
         insertText(text: string): Promise<boolean>;
 
+        /**
+         * @since 9
+         * @throws {BusinessError} 201 - permissions check fails.
+         * @throws {BusinessError} 401 - parameter error.
+         * @throws {BusinessError} 12800003 - input method client error.
+         * @syscap SystemCapability.MiscServices.InputMethodFramework
+         */
         getForward(length: number, callback: AsyncCallback<string>): void;
 
+        /**
+         * @since 9
+         * @throws {BusinessError} 201 - permissions check fails.
+         * @throws {BusinessError} 401 - parameter error.
+         * @throws {BusinessError} 12800003 - input method client error.
+         * @syscap SystemCapability.MiscServices.InputMethodFramework
+         */
         getForward(length: number): Promise<string>;
 
+        /**
+         * @since 9
+         * @throws {BusinessError} 201 - permissions check fails.
+         * @throws {BusinessError} 401 - parameter error.
+         * @throws {BusinessError} 12800003 - input method client error.
+         * @syscap SystemCapability.MiscServices.InputMethodFramework
+         */
         getBackward(length: number, callback: AsyncCallback<string>): void;
 
+        /**
+         * @since 9
+         * @throws {BusinessError} 201 - permissions check fails.
+         * @throws {BusinessError} 401 - parameter error.
+         * @throws {BusinessError} 12800003 - input method client error.
+         * @syscap SystemCapability.MiscServices.InputMethodFramework
+         */
         getBackward(length: number): Promise<string>;
 
+        /**
+         * @since 9
+         * @throws {BusinessError} 201 - permissions check fails.
+         * @throws {BusinessError} 401 - parameter error.
+         * @throws {BusinessError} 12800003 - input method client error.
+         * @syscap SystemCapability.MiscServices.InputMethodFramework
+         */
         getEditorAttribute(callback: AsyncCallback<EditorAttribute>): void;
 
+        /**
+         * @since 9
+         * @throws {BusinessError} 201 - permissions check fails.
+         * @throws {BusinessError} 401 - parameter error.
+         * @throws {BusinessError} 12800003 - input method client error.
+         * @syscap SystemCapability.MiscServices.InputMethodFramework
+         */
         getEditorAttribute(): Promise<EditorAttribute>;
 
         /**
@@ -180,8 +661,10 @@ declare namespace inputMethodEngine {
          * @since 9
          * @syscap SystemCapability.MiscServices.InputMethodFramework
          * @param direction Indicates the distance of cursor to be moved.
-         * @param callback
          * @return -
+         * @throws {BusinessError} 201 - permissions check fails.
+         * @throws {BusinessError} 401 - parameter error.
+         * @throws {BusinessError} 12800003 - input method client error.
          * @StageModelOnly
          */
         moveCursor(direction: number, callback: AsyncCallback<void>): void;
@@ -193,38 +676,114 @@ declare namespace inputMethodEngine {
          * @syscap SystemCapability.MiscServices.InputMethodFramework
          * @param direction Indicates the distance of cursor to be moved.
          * @return -
+         * @throws {BusinessError} 201 - permissions check fails.
+         * @throws {BusinessError} 401 - parameter error.
+         * @throws {BusinessError} 12800003 - input method client error.
          * @StageModelOnly
          */
         moveCursor(direction: number): Promise<void>;
     }
 
+    /**
+     * @since 8
+     */
     interface KeyboardDelegate {
+        /**
+         * Subscribe key up or down event
+         *
+         * @since 8
+         */
         on(type: 'keyDown'|'keyUp', callback: (event: KeyEvent) => boolean): void;
 
+        /**
+         * Unsubscribe key up or down event
+         *
+         * @since 8
+         */
         off(type: 'keyDown'|'keyUp', callback?: (event: KeyEvent) => boolean): void;
 
+        /**
+         * Subscribe cursor context change
+         *
+         * @since 8
+         */
         on(type: 'cursorContextChange', callback: (x: number, y: number, height: number) => void): void;
 
+        /**
+         * Unsubscribe cursor context change
+         *
+         * @since 8
+         */
         off(type: 'cursorContextChange', callback?: (x: number, y: number, height: number) => void): void;
 
+        /**
+         * Subscribe selection change
+         *
+         * @since 8
+         */
         on(type: 'selectionChange', callback: (oldBegin: number, oldEnd: number, newBegin: number, newEnd: number) => void): void;
 
+        /**
+         * Unsubscribe selection change
+         *
+         * @since 8
+         */
         off(type: 'selectionChange', callback?: (oldBegin: number, oldEnd: number, newBegin: number, newEnd: number) => void): void;
 
+        /**
+         * Subscribe text change
+         *
+         * @since 8
+         */
         on(type: 'textChange', callback: (text: string) => void): void;
 
+        /**
+         * Unsubscribe text change
+         *
+         * @since 8
+         */
         off(type: 'textChange', callback?: (text: string) => void): void;
     }
 
+    /**
+     * @since 8
+     */
     interface EditorAttribute {
+        /**
+         * Editor's pattern
+         *
+         * @since 8
+         * @syscap SystemCapability.MiscServices.InputMethodFramework
+         */
         readonly inputPattern: number;
+
+        /**
+         * Editor's key type
+         *
+         * @since 8
+         * @syscap SystemCapability.MiscServices.InputMethodFramework
+         */
         readonly enterKeyType: number;
     }
 
+    /**
+     * @since 8
+     */
     interface KeyEvent {
+        /**
+         * Key code
+         *
+         * @since 8
+         */
         readonly keyCode: number;
+
+        /**
+         * Key action
+         *
+         * @since 8
+         */
         readonly keyAction: number;
     }
 }
 
-export default inputMethodEngine;
+export default inputMethodEngine;
\ No newline at end of file
diff --git a/api/@ohos.inputmethodextensionability.d.ts b/api/@ohos.inputmethodextensionability.d.ts
index 16c5e3d423f69005ba1bfaedef944a49e9048059..9736dd016caeeb13a3e2bbf9d5ec8825ad8cf429 100644
--- a/api/@ohos.inputmethodextensionability.d.ts
+++ b/api/@ohos.inputmethodextensionability.d.ts
@@ -13,8 +13,9 @@
  * limitations under the License.
  */
 
+import rpc from "./@ohos.rpc";
 import Want from './@ohos.application.Want';
-
+import ExtensionAbility from './@ohos.application.ExtensionAbility';
 import InputMethodExtensionContext from "./@ohos.inputmethodextensioncontext";
 
 /**
@@ -24,10 +25,9 @@ import InputMethodExtensionContext from "./@ohos.inputmethodextensioncontext";
  * @syscap SystemCapability.MiscServices.InputMethodFramework
  * @StageModelOnly
  */
-export default class InputMethodExtensionAbility {
+export default class InputMethodExtensionAbility extends ExtensionAbility {
     /**
      * Indicates input method extension ability context.
-     *
      * @since 9
      * @syscap SystemCapability.MiscServices.InputMethodFramework
      * @StageModelOnly
@@ -41,6 +41,7 @@ export default class InputMethodExtensionAbility {
      * @syscap SystemCapability.MiscServices.InputMethodFramework
      * @param want Indicates the want of created service extension.
      * @return -
+     * @throws {BusinessError} 401 - parameter error.
      * @StageModelOnly
      */
     onCreate(want: Want): void;
@@ -51,8 +52,60 @@ export default class InputMethodExtensionAbility {
      * @since 9
      * @syscap SystemCapability.MiscServices.InputMethodFramework
      * @return -
+     * @throws {BusinessError} 401 - parameter error.
      * @StageModelOnly
      */
     onDestroy(): void;
 
+    /**
+     * Called back when a input method extension is started.
+     *
+     * @since 9
+     * @syscap SystemCapability.MiscServices.InputMethodFramework
+     * @param want Indicates the want of service extension to start.
+     * @param startId Indicates the number of times the service extension has been started. The {@code startId} is
+     *     incremented by 1 every time the service extension is started. For example, if the service extension
+     *     has been started for six times.
+     * @return -
+     * @throws {BusinessError} 401 - parameter error.
+     * @StageModelOnly
+     */
+    onRequest(want: Want, startId: number): void;
+
+    /**
+     * Called back when a input method extension is first connected to an ability.
+     *
+     * @since 9
+     * @syscap SystemCapability.MiscServices.InputMethodFramework
+     * @param want Indicates connection information about the Service ability.
+     * @return Returns the proxy of the Service ability.
+     * @throws {BusinessError} 401 - parameter error.
+     * @StageModelOnly
+     */
+    onConnect(want: Want): rpc.RemoteObject;
+
+    /**
+     * Called back when all abilities connected to a input method extension are disconnected.
+     *
+     * @since 9
+     * @syscap SystemCapability.MiscServices.InputMethodFramework
+     * @param want Indicates disconnection information about the service extension.
+     * @return -
+     * @throws {BusinessError} 401 - parameter error.
+     * @StageModelOnly
+     */
+    onDisconnect(want: Want): void;
+
+    /**
+     * Called when a new client attempts to connect to a input method extension after all previous client connections to it
+     * are disconnected.
+     *
+     * @since 9
+     * @syscap SystemCapability.MiscServices.InputMethodFramework
+     * @param want Indicates the want of the service extension being connected.
+     * @return -
+     * @throws {BusinessError} 401 - parameter error.
+     * @StageModelOnly
+     */
+    onReconnect(want: Want): void;
 }
\ No newline at end of file
diff --git a/api/@ohos.inputmethodextensioncontext.d.ts b/api/@ohos.inputmethodextensioncontext.d.ts
index 59287c655f31ec7f22d4b7a086f3e7cf745dbe25..c09bd7e0a3264171c298d1168d60a9e2d161c9d8 100644
--- a/api/@ohos.inputmethodextensioncontext.d.ts
+++ b/api/@ohos.inputmethodextensioncontext.d.ts
@@ -30,15 +30,29 @@ export default class InputMethodExtensionContext extends ExtensionContext {
      * Input method extension uses this method to start a specific ability.
      *
      * @since 9
+     * @deprecated since 9
      * @syscap SystemCapability.MiscServices.InputMethodFramework
      * @param want Indicates the ability to start.
      * @param options Indicates the start options.
      * @return -
      * @StageModelOnly
      */
-    startAbility(want: Want, callback: AsyncCallback<void>): void;
-    startAbility(want: Want, options: StartOptions, callback: AsyncCallback<void>): void;
-    startAbility(want: Want, options?: StartOptions): Promise<void>;
+     startAbility(want: Want, callback: AsyncCallback<void>): void;
+     startAbility(want: Want, options: StartOptions, callback: AsyncCallback<void>): void;
+     startAbility(want: Want, options?: StartOptions): Promise<void>;
+    
+     /**
+      * Destroy the input method extension.
+      *
+      * @since 9
+      * @deprecated since 9
+      * @useinstead ohos.inputmethodextensioncontext.InputMethodExtensionContext.destroy
+      * @syscap SystemCapability.MiscServices.InputMethodFramework
+      * @return -
+      * @StageModelOnly
+      */
+     terminateSelf(callback: AsyncCallback<void>): void;
+     terminateSelf(): Promise<void>;
 
     /**
      * Destroy the input method extension.
@@ -46,8 +60,19 @@ export default class InputMethodExtensionContext extends ExtensionContext {
      * @since 9
      * @syscap SystemCapability.MiscServices.InputMethodFramework
      * @return -
+     * @throws {BusinessError} 401 - parameter error.
      * @StageModelOnly
      */
-    terminateSelf(callback: AsyncCallback<void>): void;
-    terminateSelf(): Promise<void>;
+    destroy(callback: AsyncCallback<void>): void;
+
+    /**
+     * Destroy the input method extension.
+     *
+     * @since 9
+     * @syscap SystemCapability.MiscServices.InputMethodFramework
+     * @return -
+     * @throws {BusinessError} 401 - parameter error.
+     * @StageModelOnly
+     */
+    destroy(): Promise<void>;
 }
\ No newline at end of file