diff --git a/api/@ohos.bundle.bundleManager.d.ts b/api/@ohos.bundle.bundleManager.d.ts
index 0ab397217..c9b773f41 100644
--- a/api/@ohos.bundle.bundleManager.d.ts
+++ b/api/@ohos.bundle.bundleManager.d.ts
@@ -1336,6 +1336,37 @@ declare namespace bundleManager {
     NONE = 7
   }
 
+  /**
+   * This enumeration value is used to identify various types of extension ability
+   *
+   * @enum { number }
+   * @syscap SystemCapability.BundleManager.BundleFramework.Core
+   * @since 12
+  */
+  export enum MultiAppModeType {
+    /**
+     * Indicates multi app mode with type of unspecified
+     *
+     * @syscap SystemCapability.BundleManager.BundleFramework.Core
+     * @since 12
+     */
+    UNSPECIFIED = 0,
+    /**
+     * Indicates multi app mode with type of multiInstance
+     *
+     * @syscap SystemCapability.BundleManager.BundleFramework.Core
+     * @since 12
+     */
+    MULTI_INSTANCE = 1,
+    /**
+     * Indicates multi app mode with type of appClone
+     *
+     * @syscap SystemCapability.BundleManager.BundleFramework.Core
+     * @since 12
+    */
+    APP_CLONE = 2,
+  }
+
   /**
    * Obtains own bundleInfo.
    *
diff --git a/api/bundleManager/ApplicationInfo.d.ts b/api/bundleManager/ApplicationInfo.d.ts
index 53c15cc39..14d3d614f 100644
--- a/api/bundleManager/ApplicationInfo.d.ts
+++ b/api/bundleManager/ApplicationInfo.d.ts
@@ -544,6 +544,16 @@ export interface ApplicationInfo {
    * @since 12
    */
   readonly nativeLibraryPath: string;
+
+  /**
+   * Indicates the MultiAppMode object of the bundle
+   *
+   * @type { MultiAppMode }
+   * @readonly
+   * @syscap SystemCapability.BundleManager.BundleFramework.Core
+   * @since 12
+   */
+  readonly multiAppMode: MultiAppMode;
 }
 
 /**
@@ -654,4 +664,33 @@ export interface PreinstalledApplicationInfo {
    * @since 12
    */
   readonly labelId: number;
-}
\ No newline at end of file
+}
+
+/**
+ * Indicates MultiAppMode
+ *
+ * @typedef MultiAppMode
+ * @syscap SystemCapability.BundleManager.BundleFramework.Core
+ * @since 12
+ */
+export interface MultiAppMode {
+  /**
+   * Indicates the multiAppModeType of the bundle
+   *
+   * @type { bundleManager.MultiAppModeType }
+   * @readonly
+   * @syscap SystemCapability.BundleManager.BundleFramework.Core
+   * @since 12
+   */
+  readonly multiAppModeType: bundleManager.MultiAppModeType;
+
+  /**
+   * Indicates the max count of the bundle
+   *
+   * @type { number }
+   * @readonly
+   * @syscap SystemCapability.BundleManager.BundleFramework.Core
+   * @since 12
+   */
+  readonly maxCount: number;
+}