diff --git a/api/@ohos.multimedia.camera.d.ts b/api/@ohos.multimedia.camera.d.ts
index c4eac85b28d0622b8ae4db07c4cdd630c2b0df0e..057e9370046b002d41dcbb7b770bb786ebd37529 100644
--- a/api/@ohos.multimedia.camera.d.ts
+++ b/api/@ohos.multimedia.camera.d.ts
@@ -7752,6 +7752,30 @@ declare namespace camera {
      */
     off(type: 'lcdFlashStatus', callback?: AsyncCallback<LcdFlashStatus>): void;
 
+    /**
+         * Registers a callback for the camera switch request event.
+         *
+         * @param { 'cameraSwitchRequest' } type - Event type.
+         * @param { AsyncCallback<CameraDevice> } callback - Callback used to handle the camera switch request.
+         * @throws { BusinessError } 202 - Not System Application.
+         * @syscap SystemCapability.Multimedia.Camera.Core
+         * @systemapi
+         * @since 21
+         */
+    on(type: 'cameraSwitchRequest',  callback: AsyncCallback<CameraDevice>): void;
+    
+    /**
+     * Unregisters a callback for the camera switch request event.
+     *
+     * @param { 'cameraSwitchRequest' } type - Event type.
+     * @param { AsyncCallback<CameraDevice> } [callback] - Callback used to handle the camera switch request. If not provided, all callbacks for this event will be removed.
+     * @throws { BusinessError } 202 - Not System Application.
+     * @syscap SystemCapability.Multimedia.Camera.Core
+     * @systemapi
+     * @since 21
+     */
+    off(type: 'cameraSwitchRequest',  callback?: AsyncCallback<CameraDevice>): void;
+
     /**
      * Gets session functions.
      *
@@ -8205,6 +8229,30 @@ declare namespace camera {
      */
     off(type: 'effectSuggestionChange', callback?: AsyncCallback<EffectSuggestionType>): void;
 
+    /**
+     * Registers a callback for the camera switch request event.
+     *
+     * @param { 'cameraSwitchRequest' } type - Event type.
+     * @param { AsyncCallback<CameraDevice> } callback - Callback used to handle the camera switch request.
+     * @throws { BusinessError } 202 - Not System Application.
+     * @syscap SystemCapability.Multimedia.Camera.Core
+     * @systemapi
+     * @since 21
+     */
+    on(type: 'cameraSwitchRequest',  callback: AsyncCallback<CameraDevice>): void;
+ 
+    /**
+     * Unregisters a callback for the camera switch request event.
+     *
+     * @param { 'cameraSwitchRequest' } type - Event type.
+     * @param { AsyncCallback<CameraDevice> } [callback] - Callback used to handle the camera switch request. If not provided, all callbacks for this event will be removed.
+     * @throws { BusinessError } 202 - Not System Application.
+     * @syscap SystemCapability.Multimedia.Camera.Core
+     * @systemapi
+     * @since 21
+     */
+    off(type: 'cameraSwitchRequest',  callback?: AsyncCallback<CameraDevice>): void;
+
     /**
      * Gets session functions.
      *