diff --git a/03-UnrealEngine/Mobile/IOS&Android Engine Package.md b/03-UnrealEngine/Mobile/IOS&Android Engine Package.md
index 38818f3..0558f64 100644
--- a/03-UnrealEngine/Mobile/IOS&Android Engine Package.md	
+++ b/03-UnrealEngine/Mobile/IOS&Android Engine Package.md	
@@ -140,4 +140,15 @@ UE5.1为准的安装环境：
 ```bash
 cd D:\UnrealEngine\UE_5.2\Engine\Build\Batchfiles
 RunUAT.bat BuildPlugin -plugin="D:\UnrealEngine\Project\Plugins\MultiDraw\Plugins\MultiDraw\MultiDraw.uplugin" -package="D:\MultiDraw"
+```
+
+# BuildGraph PlatformFilters
+在InstalledEngineFilters.xml可以看得出各个平台的区别
+```xml
+    <!-- Platform extensions filter overrides -->
+    <Expand Name="Platform_FilterOverrides"/>
+    
+    <ForEach Name="Filter" Values="$(CopyEditorEngineOrPlatformFilter)">
+        <Property Name="CopyEditorFilter" Value="$(CopyEditorFilter);Engine/$(Filter);Engine/Platforms/*/$(Filter)"/>
+    </ForEach>
 ```
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