diff --git a/api/@ohos.application.Ability.d.ts b/api/@ohos.application.Ability.d.ts
index 65963be527b5e0901076ed6d413728e4407f4a79..38a08deac1f37bee7e06977a44ea7dae7242a401 100755
--- a/api/@ohos.application.Ability.d.ts
+++ b/api/@ohos.application.Ability.d.ts
@@ -175,6 +175,17 @@ export default class Ability {
      */
     onWindowStageDestroy(): void;
 
+    /**
+     * Called back when an ability window stage is restored.
+     *
+     * @since 9
+     * @syscap SystemCapability.Ability.AbilityRuntime.AbilityCore
+     * @param windowStage window stage to restore
+     * @return -
+     * @StageModelOnly
+     */
+    onWindowStageRestore(windowStage: window.WindowStage): void;
+
     /**
      * Called back before an ability is destroyed.
      *
diff --git a/api/application/AbilityContext.d.ts b/api/application/AbilityContext.d.ts
index 442c46a5d07d4cb904e775c2375a2ff8223c8c7b..3238ae439e9705e45d5b9424109e4c5d0bd4b95e 100755
--- a/api/application/AbilityContext.d.ts
+++ b/api/application/AbilityContext.d.ts
@@ -24,6 +24,7 @@ import StartOptions from "../@ohos.application.StartOptions";
 import PermissionRequestResult from "./PermissionRequestResult";
 import { Configuration } from '../@ohos.application.Configuration';
 import Caller from '../@ohos.application.Ability';
+import { ContentStorage } from '../@internal/component/ets/state_management';
 
 /**
  * The context of an ability. It allows access to ability-specific resources.
@@ -213,4 +214,15 @@ export default class AbilityContext extends Context {
      */
     requestPermissionsFromUser(permissions: Array<string>, requestCallback: AsyncCallback<PermissionRequestResult>) : void;
     requestPermissionsFromUser(permissions: Array<string>) : Promise<PermissionRequestResult>;
+
+    /**
+     * Restore window stage data in ability continuation
+     *
+     * @since 9
+     * @syscap SystemCapability.Ability.AbilityRuntime.Core
+     * @param contentStorage the storage data used to restore window stage
+     * @StageModelOnly
+     */
+    restoreWindowStage(contentStorage: ContentStorage) : void;
+
 }
\ No newline at end of file