diff --git a/api/notification/notificationContent.d.ts b/api/notification/notificationContent.d.ts
index fda668c082111bc4204168a1227dec0195daffb1..991b4eff5895e6a68031cedaa8317dc1b3ca5f7e 100644
--- a/api/notification/notificationContent.d.ts
+++ b/api/notification/notificationContent.d.ts
@@ -22,6 +22,7 @@ import notification from '../@ohos.notification';
 import image from '../@ohos.multimedia.image';
 import { Resource } from '../global/resource';
 import type notificationManager from '../@ohos.notificationManager';
+import type { WantAgent } from '../@ohos.wantAgent';
 
 /**
  * Describes icon type.
@@ -379,6 +380,16 @@ export interface NotificationMultiLineContent extends NotificationBasicContent {
    * @since 12
    */
   lines: Array<string>;
+
+  /**
+   * Multi0-line wantAgent of the multi-line text notification.
+   * @permission ohos.permission.NOTIFICATION_AGENT_CONTROLLER
+   * @type { ?Array<WantAgent> }
+   * @syscap SystemCapability.Notification.Notification
+   * @systemapi
+   * @since 20
+   */
+  lineWantAgents?: Array<WantAgent>;
 }
 
 /**