diff --git a/OAT.xml b/OAT.xml
index 936f7e7..a712c5d 100644
--- a/OAT.xml
+++ b/OAT.xml
@@ -12,9 +12,6 @@
      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.
-
-     Notes:
-     This is project config file for OpenHarmony OSS Audit Tool, if you have any questions or concerns, please email chenyaxun@huawei.com.
 -->
 <!-- OAT(OSS Audit Tool) configuration guide:
 basedir: Root dir, the basedir + project path is the real source file location.
diff --git a/README.md b/README.md
old mode 100755
new mode 100644
index cec2abf..b1b49b7
--- a/README.md
+++ b/README.md
@@ -7,13 +7,27 @@
 
 ## Introduction<a name="section11660541593"></a>
 
-The  **utils**  repository provides ndk_libraries_config and system functions.
+The  **utils**  repository provides some commonly used C and C++ development enhancement APIs. 
+It includes the following parts:
+
+**C++ part:**
+
+- Ability enhancement interface for file, path, string related operations;
+- Interfaces such as read-write locks, semaphores, timers, thread enhancements and thread pools;
+- Interfaces such as secure data container and data serialization;
+- Definition of error codes for each subsystem;
+- C language safety function interface.
+
+**Part C:**
+
+- HAL interface for standard file related operations;
+- Some other internal functions, such as timers, etc. 
 
 ## Directory Structure<a name="section17271017133915"></a>
 
 ```
 utils
-├── ndk_libraries_config # Configuration of the NDK library
+├── native               # utils native implementation
 └── system               # System-related predefined values and SA framework
 ```
 
@@ -25,9 +39,11 @@ For details, see the API Reference.
 
 Utils subsystem
 
-**utils**
+[utils](https://gitee.com/openharmony/utils/blob/master/README.md)
+
+[utils\_native](https://gitee.com/openharmony/utils_native/blob/master/README.md)
+
+[utils\_native\_lite](https://gitee.com/openharmony/utils_native_lite/blob/master/README.md)
 
-utils\_native
 
-[utils\_native\_lite](https://gitee.com/openharmony/utils_native_lite)
 
diff --git a/README_zh.md b/README_zh.md
old mode 100755
new mode 100644
index 4802b6b..9113d02
--- a/README_zh.md
+++ b/README_zh.md
@@ -18,7 +18,6 @@
 
 **C部分：**
 
--   简易的数据存取接口kv\_store；
 -   标准文件相关操作HAL接口；
 -   其它一些内部功能，如定时器等。
 
@@ -27,7 +26,6 @@
 ```
 /utils
     ├── native                  # 工具类的native层实现
-    ├── ndk_libraries_config    # ndk库的配置目录
     └── system                  # 系统相关的预定义值和安全策略配
 ```
 
@@ -35,9 +33,9 @@
 
 **公共基础库子系统**
 
-utils
+[utils](https://gitee.com/openharmony/utils/blob/master/README_zh.md)
 
-utils\_native
+[utils\_native](https://gitee.com/openharmony/utils_native/blob/master/README_zh.md)
 
-[utils\_native\_lite](https://gitee.com/openharmony/utils_native_lite)
+[utils\_native\_lite](https://gitee.com/openharmony/utils_native_lite/blob/master/README_zh.md)