diff --git a/api/@ohos.app.ability.AbilityStage.d.ts b/api/@ohos.app.ability.AbilityStage.d.ts
index 9347e97d8852a64251cf3fc9a3978380bfc5e8ce..dd466c1a99131080951933364043a772f5c6ceed 100644
--- a/api/@ohos.app.ability.AbilityStage.d.ts
+++ b/api/@ohos.app.ability.AbilityStage.d.ts
@@ -227,4 +227,31 @@ export default class AbilityStage {
    * @since 15
    */
   onPrepareTerminationAsync(): Promise<AbilityConstant.PrepareTermination>;
+
+  /**
+   * Called back asynchronously upon starting specified ability.
+   *
+   * @param { Want } want - Indicates the want info of the started ability.
+   * @returns { Promise<string> }  The user returns an ability string ID. If the ability of this ID has been started before,
+   *         do not create a new instance and pull it back to the top of the stack.
+   *         Otherwise, create a new instance and start it.
+   * @syscap SystemCapability.Ability.AbilityRuntime.Core
+   * @stagemodelonly
+   * @atomicservice
+   * @since 20
+   */
+  onAcceptWantAsync(want: Want): Promise<string>;
+
+  /**
+   * Called back asynchronously upon starting UIAbility in specified process.
+   *
+   * @param { Want } want - Indicates the want info of the started ability.
+   * @returns { Promise<string> }  The user returns an ability string ID. If the ability of this ID has been started before,
+   *         let the ability run in this process. Otherwise, create a new process.
+   * @syscap SystemCapability.Ability.AbilityRuntime.Core
+   * @stagemodelonly
+   * @atomicservice
+   * @since 20
+   */
+  onNewProcessRequestAsync(want: Want): Promise<string>;
 }
diff --git a/api/@ohos.app.ability.UIAbility.d.ts b/api/@ohos.app.ability.UIAbility.d.ts
index bf815f511216219a1da46b8e04a24fbdb418de85..e49fe51d26064498b28508f5ca1b968e17b76aa4 100644
--- a/api/@ohos.app.ability.UIAbility.d.ts
+++ b/api/@ohos.app.ability.UIAbility.d.ts
@@ -794,4 +794,18 @@ export default class UIAbility extends Ability {
    * @since 18
    */
   onCollaborate(wantParam: Record<string, Object>): AbilityConstant.CollaborateResult;
+
+  /**
+   * Called back asynchronously when an ability prepares to save.
+   *
+   * @param { AbilityConstant.StateType } stateType - state type when save.
+   * @param { Record<string, Object> } wantParam - Indicates the want parameter.
+   * @returns { Promise<AbilityConstant.OnSaveResult> } agree with the current UIAbility status or not.return 0 if ability
+   *                                           agrees to save data successfully, otherwise errcode.
+   * @syscap SystemCapability.Ability.AbilityRuntime.AbilityCore
+   * @stagemodelonly
+   * @atomicservice
+   * @since 20
+   */
+  onSaveStateAsync(stateType: AbilityConstant.StateType, wantParam: Record<string, Object>): Promise<AbilityConstant.OnSaveResult>;
 }