diff --git a/Assets/YooAsset/Samples~/Extension Sample/Editor/PreprocessBuild.meta b/Assets/YooAsset/Samples~/Extension Sample/Editor/PreprocessBuild.meta
new file mode 100644
index 00000000..750d2d07
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+++ b/Assets/YooAsset/Samples~/Extension Sample/Editor/PreprocessBuild.meta	
@@ -0,0 +1,8 @@
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diff --git a/Assets/YooAsset/Samples~/Extension Sample/Editor/PreprocessBuild/PreprocessBuildCatalog.cs b/Assets/YooAsset/Samples~/Extension Sample/Editor/PreprocessBuild/PreprocessBuildCatalog.cs
new file mode 100644
index 00000000..339fc58d
--- /dev/null
+++ b/Assets/YooAsset/Samples~/Extension Sample/Editor/PreprocessBuild/PreprocessBuildCatalog.cs	
@@ -0,0 +1,48 @@
+using System.Collections.Generic;
+using System.IO;
+using UnityEngine;
+
+namespace YooAsset
+{
+    public class PreprocessBuildCatalog : UnityEditor.Build.IPreprocessBuildWithReport
+    {
+        public int callbackOrder { get { return 0; } }
+
+        /// <summary>
+        /// 在构建应用程序前自动生成内置资源目录文件。
+        /// 原理：搜索StreamingAssets目录下的所有资源文件，将这些文件信息写入文件，然后在运行时做查询用途。
+        /// </summary>
+        public void OnPreprocessBuild(UnityEditor.Build.Reporting.BuildReport report)
+        {
+            YooLogger.Log("Begin to create catalog file !");
+
+            string rootPath = YooAssetSettingsData.GetYooDefaultBuildinRoot();
+            DirectoryInfo rootDirectory = new DirectoryInfo(rootPath);
+            if (rootDirectory.Exists == false)
+            {
+                Debug.LogWarning($"Can not found StreamingAssets root directory : {rootPath}");
+                return;
+            }
+
+            // 搜索所有Package目录
+            DirectoryInfo[] subDirectories = rootDirectory.GetDirectories();
+            foreach (var subDirectory in subDirectories)
+            {
+                string packageName = subDirectory.Name;
+                string pacakgeDirectory = subDirectory.FullName;
+                try
+                {
+                    bool result = CatalogTools.CreateCatalogFile(null, packageName, pacakgeDirectory); //TODO 自行处理解密
+                    if (result == false)
+                    {
+                        Debug.LogError($"Create package {packageName} catalog file failed ! See the detail error in console !");
+                    }
+                }
+                catch (System.Exception ex)
+                {
+                    Debug.LogError($"Create package {packageName} catalog file failed ! {ex.Message}");
+                }
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/Assets/YooAsset/Samples~/Extension Sample/Editor/PreprocessBuild/PreprocessBuildCatalog.cs.meta b/Assets/YooAsset/Samples~/Extension Sample/Editor/PreprocessBuild/PreprocessBuildCatalog.cs.meta
new file mode 100644
index 00000000..5400d792
--- /dev/null
+++ b/Assets/YooAsset/Samples~/Extension Sample/Editor/PreprocessBuild/PreprocessBuildCatalog.cs.meta	
@@ -0,0 +1,11 @@
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