diff --git a/api/@ohos.app.ability.AppServiceExtensionAbility.d.ts b/api/@ohos.app.ability.AppServiceExtensionAbility.d.ts
index c37bb42283d07a2fad7c03ea7de6abdfb7971f64..f7735ebeb1e6329eab4587446562483b89230b9e 100644
--- a/api/@ohos.app.ability.AppServiceExtensionAbility.d.ts
+++ b/api/@ohos.app.ability.AppServiceExtensionAbility.d.ts
@@ -29,15 +29,19 @@ import ExtensionAbility from './@ohos.app.ability.ExtensionAbility';
  * @extends ExtensionAbility
  * @syscap SystemCapability.Ability.AbilityRuntime.Core
  * @stagemodelonly
+ * @since 20
+ * @arkts 1.1&1.2
  * @since 20 dynamic
  */
-export default class AppServiceExtensionAbility extends ExtensionAbility {
+declare class AppServiceExtensionAbility extends ExtensionAbility {
   /**
    * Indicates app service extension ability context.
    *
    * @type { AppServiceExtensionContext }
    * @syscap SystemCapability.Ability.AbilityRuntime.Core
    * @stagemodelonly
+   * @since 20
+   * @arkts 1.1&1.2
    * @since 20 dynamic
    */
   context: AppServiceExtensionContext;
@@ -48,6 +52,8 @@ export default class AppServiceExtensionAbility extends ExtensionAbility {
    * @param { Want } want - Indicates the want of created app service extension.
    * @syscap SystemCapability.Ability.AbilityRuntime.Core
    * @stagemodelonly
+   * @since 20
+   * @arkts 1.1&1.2
    * @since 20 dynamic
    */
   onCreate(want: Want): void;
@@ -57,6 +63,8 @@ export default class AppServiceExtensionAbility extends ExtensionAbility {
    *
    * @syscap SystemCapability.Ability.AbilityRuntime.Core
    * @stagemodelonly
+   * @since 20
+   * @arkts 1.1&1.2
    * @since 20 dynamic
    */
   onDestroy(): void;
@@ -69,6 +77,8 @@ export default class AppServiceExtensionAbility extends ExtensionAbility {
    *                             The {@code startId} is incremented by 1 every time the app service extension is started.
    * @syscap SystemCapability.Ability.AbilityRuntime.Core
    * @stagemodelonly
+   * @since 20
+   * @arkts 1.1&1.2
    * @since 20 dynamic
    */
   onRequest(want: Want, startId: number): void;
@@ -80,6 +90,8 @@ export default class AppServiceExtensionAbility extends ExtensionAbility {
    * @returns { rpc.RemoteObject } A RemoteObject for communication between the client and server.
    * @syscap SystemCapability.Ability.AbilityRuntime.Core
    * @stagemodelonly
+   * @since 20
+   * @arkts 1.1&1.2
    * @since 20 dynamic
    */
   onConnect(want: Want): rpc.RemoteObject;
@@ -90,7 +102,10 @@ export default class AppServiceExtensionAbility extends ExtensionAbility {
    * @param { Want } want - Indicates disconnection information about the app service extension.
    * @syscap SystemCapability.Ability.AbilityRuntime.Core
    * @stagemodelonly
+   * @since 20
+   * @arkts 1.1&1.2
    * @since 20 dynamic
    */
   onDisconnect(want: Want): void;
 }
+export default AppServiceExtensionAbility;
diff --git a/api/application/AppServiceExtensionContext.d.ts b/api/application/AppServiceExtensionContext.d.ts
index 2eda38a5025adf8714ee2401e9810b91e2f994d7..c96ade0b5934255b88a3749d856b87cb6963a53e 100644
--- a/api/application/AppServiceExtensionContext.d.ts
+++ b/api/application/AppServiceExtensionContext.d.ts
@@ -29,9 +29,11 @@ import StartOptions from '../@ohos.app.ability.StartOptions';
  * @extends ExtensionContext
  * @syscap SystemCapability.Ability.AbilityRuntime.Core
  * @stagemodelonly
+ * @since 20
+ * @arkts 1.1&1.2
  * @since 20 dynamic
  */
-export default class AppServiceExtensionContext extends ExtensionContext {
+declare class AppServiceExtensionContext extends ExtensionContext {
   /**
   * Connects the current ability to a service extension ability.
    * If the target service extension ability is invisible,
@@ -51,6 +53,8 @@ export default class AppServiceExtensionContext extends ExtensionContext {
    * @throws { BusinessError } 16000050 - Internal error.
    * @syscap SystemCapability.Ability.AbilityRuntime.Core
    * @stagemodelonly
+   * @since 20
+   * @arkts 1.1&1.2
    * @since 20 dynamic
    */
   connectServiceExtensionAbility(want: Want, callback: ConnectOptions): number;
@@ -64,6 +68,8 @@ export default class AppServiceExtensionContext extends ExtensionContext {
    * @throws { BusinessError } 16000050 - Internal error.
    * @syscap SystemCapability.Ability.AbilityRuntime.Core
    * @stagemodelonly
+   * @since 20
+   * @arkts 1.1&1.2
    * @since 20 dynamic
    */
   disconnectServiceExtensionAbility(connection: number): Promise<void>;
@@ -101,6 +107,8 @@ export default class AppServiceExtensionContext extends ExtensionContext {
    * @throws { BusinessError } 16000080 - Creating a new instance is not supported.
    * @syscap SystemCapability.Ability.AbilityRuntime.Core
    * @stagemodelonly
+   * @since 20
+   * @arkts 1.1&1.2
    * @since 20 dynamic
    */
   startAbility(want: Want, options?: StartOptions): Promise<void>;
@@ -114,7 +122,10 @@ export default class AppServiceExtensionContext extends ExtensionContext {
    * @throws { BusinessError } 16000050 - Internal error.
    * @syscap SystemCapability.Ability.AbilityRuntime.Core
    * @stagemodelonly
+   * @since 20
+   * @arkts 1.1&1.2
    * @since 20 dynamic
    */
   terminateSelf(): Promise<void>;
 }
+export default AppServiceExtensionContext;