diff --git a/api/@ohos.distributedHardware.deviceManager.d.ts b/api/@ohos.distributedHardware.deviceManager.d.ts
index 698c80295cc9084b7d813a16f3006accd7e6016f..de700f570ff92c322b4bb6bbf5d5381d3f69a3d7 100644
--- a/api/@ohos.distributedHardware.deviceManager.d.ts
+++ b/api/@ohos.distributedHardware.deviceManager.d.ts
@@ -477,6 +477,31 @@ declare namespace deviceManager {
      */
     verifyAuthInfo(authInfo: AuthInfo, callback: AsyncCallback<{deviceId: string, level: number}>): void;
 
+    /**
+     * Set user Operation from devicemanager Sea, this interface can only used by devicemanager Sea.
+     *
+     * @param operateAction User Operation Actions.
+     * @systemapi this method can be used only by system applications.
+     */  
+     setUserOperation(operateAction: number, params: string): void;
+
+    /**
+     * Register a callback from deviceManager service so that the devicemanager Sea can be notified when some events happen.
+     * this interface can only used by devicemanager Sea.
+     *
+     * @param callback for devicemanager Sea to register.
+     * @systemapi this method can be used only by system applications.
+     */
+     on(type: 'seaStatueChange', callback: Callback<{ param: string}>): void;
+
+     /**
+      * UnRegister dmSeaCallback, this interface can only used by devicemanager Sea.
+      *
+      * @param callback for devicemanager Sea to register.
+      * @systemapi this method can be used only by system applications.
+      */
+     off(type: 'seaStatueChange', callback?: Callback<{ param: string}>): void;
+
     /**
      * Register a device state callback so that the application can be notified upon device state changes based on
      * the application bundle name.