diff --git a/Assets/YooAsset/Editor/AssetBundleBuilder/AssetBundleBuilderWindow.cs b/Assets/YooAsset/Editor/AssetBundleBuilder/AssetBundleBuilderWindow.cs
index b1af25d..9bd535f 100644
--- a/Assets/YooAsset/Editor/AssetBundleBuilder/AssetBundleBuilderWindow.cs
+++ b/Assets/YooAsset/Editor/AssetBundleBuilder/AssetBundleBuilderWindow.cs
@@ -198,8 +198,9 @@ namespace YooAsset.Editor
 		/// 获取加密类的类型列表
 		/// </summary>
 		private List<Type> GetEncryptionServicesClassTypes()
-		{
-			List<Type> classTypes = AssemblyUtility.GetAssignableTypes(AssemblyUtility.UnityDefaultAssemblyEditorName, typeof(IEncryptionServices));
+		{ 
+			TypeCache.TypeCollection collection = TypeCache.GetTypesDerivedFrom<IEncryptionServices>();
+			List<Type> classTypes = collection.ToList();
 			return classTypes;
 		}
 
diff --git a/Assets/YooAsset/Editor/AssetBundleGrouper/AssetBundleGrouperSettingData.cs b/Assets/YooAsset/Editor/AssetBundleGrouper/AssetBundleGrouperSettingData.cs
index 43c8ca5..620dffb 100644
--- a/Assets/YooAsset/Editor/AssetBundleGrouper/AssetBundleGrouperSettingData.cs
+++ b/Assets/YooAsset/Editor/AssetBundleGrouper/AssetBundleGrouperSettingData.cs
@@ -1,6 +1,7 @@
 using System;
 using System.Collections;
 using System.Collections.Generic;
+using System.Linq;
 using UnityEngine;
 using UnityEditor;
 
@@ -110,7 +111,9 @@ namespace YooAsset.Editor
 					typeof(PackGrouper),
 					typeof(PackRawFile),
 				};
-				var customTypes = AssemblyUtility.GetAssignableTypes(AssemblyUtility.UnityDefaultAssemblyEditorName, typeof(IPackRule));
+
+				TypeCache.TypeCollection collection = TypeCache.GetTypesDerivedFrom<IPackRule>();
+				var customTypes = collection.ToList();
 				types.AddRange(customTypes);
 				for (int i = 0; i < types.Count; i++)
 				{
@@ -134,7 +137,9 @@ namespace YooAsset.Editor
 					typeof(CollectPrefab),
 					typeof(CollectSprite)
 				};
-				var customTypes = AssemblyUtility.GetAssignableTypes(AssemblyUtility.UnityDefaultAssemblyEditorName, typeof(IFilterRule));
+
+				TypeCache.TypeCollection collection = TypeCache.GetTypesDerivedFrom<IFilterRule>();
+				var customTypes = collection.ToList();
 				types.AddRange(customTypes);
 				for (int i = 0; i < types.Count; i++)
 				{
diff --git a/Assets/YooAsset/Runtime/Utility/YooUtility.cs b/Assets/YooAsset/Runtime/Utility/YooUtility.cs
index 6dea756..a748918 100644
--- a/Assets/YooAsset/Runtime/Utility/YooUtility.cs
+++ b/Assets/YooAsset/Runtime/Utility/YooUtility.cs
@@ -3,147 +3,10 @@ using System.Collections;
 using System.Collections.Generic;
 using System.Text;
 using System.IO;
-using System.Linq;
 using System.Security.Cryptography;
-using System.Diagnostics;
-using System.Reflection;
 
 namespace YooAsset
 {
-	/// <summary>
-	/// 程序集工具类
-	/// </summary>
-	internal static class AssemblyUtility
-	{
-		public const string YooAssetAssemblyName = "YooAsset";
-		public const string YooAssetAssemblyEditorName = "YooAsset.Editor";
-		public const string UnityDefaultAssemblyName = "Assembly-CSharp";
-		public const string UnityDefaultAssemblyEditorName = "Assembly-CSharp-Editor";
-		
-
-		private static readonly Dictionary<string, List<Type>> _cache = new Dictionary<string, List<Type>>();
-
-		static AssemblyUtility()
-		{
-			_cache.Clear();
-		}
-
-		/// <summary>
-		/// 获取程序集
-		/// </summary>
-		public static Assembly GetAssembly(string assemblyName)
-		{
-			Assembly[] assemblies = AppDomain.CurrentDomain.GetAssemblies();
-			foreach (Assembly assembly in assemblies)
-			{
-				if (assembly.GetName().Name == assemblyName)
-					return assembly;
-			}
-			return null;
-		}
-
-		/// <summary>
-		/// 获取程序集里的所有类型
-		/// </summary>
-		private static List<Type> GetTypes(string assemblyName)
-		{
-			if (_cache.ContainsKey(assemblyName))
-				return _cache[assemblyName];
-
-			Assembly[] assemblies = AppDomain.CurrentDomain.GetAssemblies();
-			foreach (Assembly assembly in assemblies)
-			{
-				if (assembly.GetName().Name == assemblyName)
-				{
-					List<Type> types = assembly.GetTypes().ToList();
-					_cache.Add(assemblyName, types);
-					return types;
-				}
-			}
-
-			// 注意：如果没有找到程序集返回空列表
-			UnityEngine.Debug.LogWarning($"Not found assembly : {assemblyName}");
-			return new List<Type>();
-		}
-
-		/// <summary>
-		/// 获取带继承关系的所有类的类型
-		/// <param name="parentType">父类类型</param> 
-		/// </summary>
-		public static List<Type> GetAssignableTypes(string assemblyName, System.Type parentType)
-		{
-			List<Type> result = new List<Type>();
-			List<Type> cacheTypes =	GetTypes(assemblyName);
-			for (int i = 0; i < cacheTypes.Count; i++)
-			{
-				Type type = cacheTypes[i];
-
-				// 判断继承关系
-				if (parentType.IsAssignableFrom(type))
-				{
-					if (type.Name == parentType.Name)
-						continue;
-					result.Add(type);
-				}
-			}
-			return result;
-		}
-
-		/// <summary>
-		/// 获取带属性标签的所有类的类型
-		/// <param name="attributeType">属性类型</param>
-		/// </summary>
-		public static List<Type> GetAttributeTypes(string assemblyName, System.Type attributeType)
-		{
-			List<Type> result = new List<Type>();
-			List<Type> cacheTypes = GetTypes(assemblyName);
-			for (int i = 0; i < cacheTypes.Count; i++)
-			{
-				System.Type type = cacheTypes[i];
-
-				// 判断属性标签
-				if (Attribute.IsDefined(type, attributeType))
-				{
-					result.Add(type);	
-				}
-			}
-			return result;
-		}
-
-		/// <summary>
-		/// 获取带继承关系和属性标签的所有类的类型
-		/// </summary>
-		/// <param name="parentType">父类类型</param>
-		/// <param name="attributeType">属性类型</param>
-		public static List<Type> GetAssignableAttributeTypes(string assemblyName, System.Type parentType, System.Type attributeType, bool checkError = true)
-		{
-			List<Type> result = new List<Type>();
-			List<Type> cacheTypes = GetTypes(assemblyName);
-			for (int i = 0; i < cacheTypes.Count; i++)
-			{
-				Type type = cacheTypes[i];
-
-				// 判断属性标签
-				if (Attribute.IsDefined(type, attributeType))
-				{
-					// 判断继承关系
-					if (parentType.IsAssignableFrom(type))
-					{
-						if (type.Name == parentType.Name)
-							continue;
-						result.Add(type);
-					}
-					else
-					{
-						if(checkError)
-							throw new Exception($"class {type} must inherit from {parentType}.");
-					}
-				}
-			}
-			return result;
-		}
-	}
-
 	/// <summary>
 	/// 字符串工具类
 	/// </summary>