diff --git a/api/@ohos.sceneSessionManager.d.ts b/api/@ohos.sceneSessionManager.d.ts
index c48f6404d390851ce4c520ce4777301ab33535c1..ebe902b18c242ccf5ebc67dba59afd9a86db0467 100644
--- a/api/@ohos.sceneSessionManager.d.ts
+++ b/api/@ohos.sceneSessionManager.d.ts
@@ -24,9 +24,9 @@ import ServiceExtensionContext from './application/ServiceExtensionContext';
  * @since 10
  */
 declare namespace sceneSessionManager {
-  /**
-   * The information of a scene.
-   */
+/**
+ * The information of a scene.
+ */
   interface SceneInfo {
     /**
      * The bundle name of the scene.
@@ -38,6 +38,174 @@ declare namespace sceneSessionManager {
     abilityName: string;
   }
 
+  enum SessionState {
+    /**
+     * Session is disconnect.
+     */
+    STATE_DISCONNECT,
+    /**
+     * Session is on connect.
+     */
+    STATE_CONNECT,
+    /**
+     * Session is on foregrounf.
+     */
+    STATE_FOREGROUND,
+
+    /**
+     * Session is active.
+     */
+    STATE_ACTIVE,
+
+    /**
+     * Session is inactive.
+     */
+    STATE_INACTIVE,
+
+    /**
+     * Session is background.
+     */
+    STATE_BACKGROUND,
+
+    /**
+     * Session is end.
+     */
+    STATE_END,
+  }
+
+  /**
+   * Round rect.
+   *
+   * @syscap SystemCapability.WindowManager.WindowManager.Core
+   * @systemapi Hide this for inner system use.
+   */
+  interface SessionRect {
+    posX_: number;
+
+    posY_: number;
+
+    width: number;
+
+    height: number;
+  }
+
+  /**
+   * The type of a session.
+   * @syscap SystemCapability.SessionManager.SessionManager.Core
+   * @since 7
+   */
+
+  enum SessionType {
+    /**
+     * App main window.
+     */
+    TYPE_APP_MAIN_WINDOW,
+    /**
+     * Media window.
+     */
+    TYPE_MEDIA,
+    /**
+     * App sub window.
+     */
+    TYPE_APP_SUB_WINDOW,
+    /**
+     * Component window.
+     */
+    TYPE_APP_COMPONENT,
+    /**
+     * Wallpaper window.
+     */
+    TYPE_WALLPAPER,
+    /**
+     * Desktop window.
+     */
+    TYPE_DESKTOP,
+    /**
+     * Launcher window.
+     */
+    TYPE_APP_LAUNCHING,
+    /**
+     * Incoming call window.
+     */
+    TYPE_INCOMING_CALL,
+    /**
+     * Searching bar window.
+     */
+    TYPE_SEARCHING_BAR,
+    /**
+     * System alarm window.
+     */
+    TYPE_SYSTEM_ALARM_WINDOW,
+    /**
+     * Input method window.
+     */
+    TYPE_INPUT_METHOD_FLOAT,
+    /**
+     * System float window.
+     */
+    TYPE_FLOAT,
+    /**
+     * System toast window.
+     */
+    TYPE_TOAST,
+    /**
+     * System panel window.
+     */
+    TYPE_PANEL,
+    /**
+     * Keyguard window.
+     */
+    TYPE_KEYGUARD,
+    /**
+     * Volume overlay window.
+     */
+    TYPE_VOLUME_OVERLAY,
+    /**
+     * Dragging effect window.
+     */
+    TYPE_DRAGGING_EFFECT,
+    /**
+     * Launcher recent window.
+     */
+    TYPE_LAUNCHER_RECENT,
+    /**
+     * Launcher dock window.
+     */
+    TYPE_LAUNCHER_DOCK,
+    /**
+     * Boot animation window.
+     */
+    TYPE_BOOT_ANIMATION,
+    /**
+     * Freeze display window.
+     */
+    TYPE_FREEZE_DISPLAY,
+    /**
+     * Voice interaction window.
+     */
+    TYPE_VOICE_INTERACTION,
+    /**
+     * Float camera window.
+     */
+    TYPE_FLOAT_CAMERA,
+    /**
+     * Place holder window.
+     */
+    TYPE_PLACEHOLDER,
+    /**
+     * Dialog window.
+     */
+    TYPE_DIALOG,
+    /**
+     * Screenshot window.
+     */
+    TYPE_SCREENSHOT,
+    /**
+     * System sub window.
+     */
+    TYPE_SYSTEM_SUB_WINDOW
+  }
+
   /**
    * The session of a scene.
    */
@@ -47,11 +215,36 @@ declare namespace sceneSessionManager {
      */
     readonly persistentId: number;
 
+    /**
+     * Type of the session.
+     */
+    readonly sessionType: SessionType;
+
+    readonly sessionRect: SessionRect;
+
     /**
      * Register the callback of pending another scene session activation from this scene session.
      * @param type: 'pendingSceneSessionActivation'
      */
     on(type: 'pendingSceneSessionActivation', callback: Callback<SceneInfo>): void;
+
+    /**
+     * Register the callback of creating specific session from this scene session.
+     * @param type: 'createSpecificSession'
+     */
+    on(type: 'createSpecificSession', callback: Callback<SceneSession>): void;
+
+    /**
+     * Register the callback of state change of this scene session.
+     * @param type: 'pendingSceneSessionActivation'
+     */
+    on(type: 'sessionStateChange', callback: Callback<SessionState>): void;
+
+    /**
+     * Register the callback of state change of  this scene session.
+     * @param type: 'pendingSceneSessionActivation'
+     */
+    on(type: 'sessionRectChange', callback: Callback<SessionRect>): void;
   }
 
   /**