diff --git a/api/@ohos.arkui.stateManagement.d.ets b/api/@ohos.arkui.stateManagement.d.ets
index 02653fb237eac2ec0b7b444a13795102d808e61d..c269289b2733c9ef791b3eb713c64870deb6b2da 100644
--- a/api/@ohos.arkui.stateManagement.d.ets
+++ b/api/@ohos.arkui.stateManagement.d.ets
@@ -22,4 +22,5 @@
 export * from './arkui/stateManagement/decorator';
 export * from './arkui/stateManagement/runtime';
 export * from './arkui/stateManagement/storage/appStorage';
-export * from './arkui/stateManagement/storage/localStorage';
\ No newline at end of file
+export * from './arkui/stateManagement/storage/localStorage';
+export * from './arkui/stateManagement/utils';
\ No newline at end of file
diff --git a/api/arkui/stateManagement/decorator.d.ets b/api/arkui/stateManagement/decorator.d.ets
index fd7219e092fd9aad9d90ea6f398850b36a3b9115..a626dc9e896980b020b846331d9af5753900d666 100644
--- a/api/arkui/stateManagement/decorator.d.ets
+++ b/api/arkui/stateManagement/decorator.d.ets
@@ -77,11 +77,6 @@ export declare @interface Watch {
 @Retention({policy: "SOURCE"})
 export declare @interface Require {};
 
-export declare class UIUtils {
-    static getTarget<T extends object>(source: T): T;
-    static makeObserved<T extends object>(source: T): T;
-}
-
 export declare interface IDecoratedVariable {
     readonly varName: string;
 }
diff --git a/api/arkui/stateManagement/utils.d.ets b/api/arkui/stateManagement/utils.d.ets
new file mode 100644
index 0000000000000000000000000000000000000000..a764b6d316b92950f8612f463e077abf8841ef0c
--- /dev/null
+++ b/api/arkui/stateManagement/utils.d.ets
@@ -0,0 +1,51 @@
+/*
+ * Copyright (C) 2025 Huawei Device Co., Ltd.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * @file
+ * @kit ArkUI
+ * @arkts 1.2
+ */
+
+/**
+ * UIUtils is a state management tool class for operating the observed data.
+ *
+ * @syscap SystemCapability.ArkUI.ArkUI.Full
+ * @since 20
+ */
+export declare class UIUtils {
+  /**
+   * Get raw object from the Object, like builtin type, objectLiteral.
+   * If input parameter is a regular Object without proxy, return Object itself.
+   *
+   * @param { T } source input source Object data.
+   * @returns { T } raw object.
+   * @static
+   * @syscap SystemCapability.ArkUI.ArkUI.Full
+   * @since 20
+   */
+  static getTarget<T extends object>(source: T): T;
+
+  /**
+   * Make non-observed data into observed data.
+   * Support builtin type and objectLiteral.
+   *
+   * @param { T } source input source object data.
+   * @returns { T } proxy object from the source object data.
+   * @static
+   * @syscap SystemCapability.ArkUI.ArkUI.Full
+   * @since 20
+   */
+   static makeObserved<T extends object>(source: T): T;
+}
\ No newline at end of file