diff --git a/OAT.xml b/OAT.xml
old mode 100755
new mode 100644
index 2f6db72..5ff55a7
--- a/OAT.xml
+++ b/OAT.xml
@@ -13,51 +13,14 @@
      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.
--->
-<!-- OAT(OSS Audit Tool) configuration guide:
-basedir: Root dir, the basedir + project path is the real source file location.
-licensefile:
-1.If the project don't have "LICENSE" in root dir, please define all the license files in this project in , OAT will check license files according to this rule.
-
-tasklist(only for batch mode):
-1. task: Define oat check thread, each task will start a new thread.
-2. task name: Only an name, no practical effect.
-3. task policy: Default policy for projects under this task, this field is required and the specified policy must defined in policylist.
-4. task filter: Default filefilter for projects under this task, this field is required and the specified filefilter must defined in filefilterlist.
-5. task project: Projects to be checked, the path field define the source root dir of the project.
-
-
-policyList:
-1. policy: All policyitems will be merged to default OAT.xml rules, the name of policy doesn't affect OAT check process.
-2. policyitem: The fields type, name, path, desc is required, and the fields rule, group, filefilter is optional,the default value is:
-<policyitem type="" name="" path="" desc="" rule="may" group="defaultGroup" filefilter="defaultPolicyFilter"/>
-3. policyitem type:
-    "compatibility" is used to check license compatibility in the specified path;
-    "license" is used to check source license header in the specified path;
-    "copyright" is used to check source copyright header in the specified path;
-    "import" is used to check source dependency in the specified path, such as import ... ,include ...
-    "filetype" is used to check file type in the specified path, supported file types: archive, binary
-    "filename" is used to check whether the specified file exists in the specified path(support projectroot in default OAT.xml), supported file names: LICENSE, README, README.OpenSource
-
-4. policyitem name: This field is used for define the license, copyright, "*" means match all, the "!" prefix means could not match this value. For example, "!GPL" means can not use GPL license.
-5. policyitem path: This field is used for define the source file scope to apply this policyitem, the "!" prefix means exclude the files. For example, "!.*/lib/.*" means files in lib dir will be exclude while process this policyitem.
-6. policyitem rule and group: These two fields are used together to merge policy results. "may" policyitems in the same group means any one in this group passed, the result will be passed.
-7. policyitem filefilter: Used to bind filefilter which define filter rules.
-8. filefilter: Filter rules, the type filename is used to filter file name, the type filepath is used to filter file path.
-
-Note:If the text contains special characters, please escape them according to the following rules:
-" == &gt;
-& == &gt;
-' == &gt;
-< == &gt;
-> == &gt;
+    This is the configuration file template for OpenHarmony OSS Audit Tool, please copy it to your project root dir and modify it refer to OpenHarmony/tools_oat/README.
 -->
 <configuration>
     <oatconfig>
         <filefilterlist>
-            <filefilter name="licenseFileNamePolicyFilter" desc="Filters for LICENSE file policies" >
+            <filefilter name="licenseFileNamePolicyFilter" desc="Filters for LICENSE file policies"/>
+            <filefilter name="defaultFilter" desc="Files not to check">
+                <filteritem type="filename" name="*.png|*.jpg" desc="Allow open source ux png images"/>
             </filefilter>
         </filefilterlist>
     </oatconfig>