diff --git a/UnityProject/Assets/TEngine/Runtime/Extension/UnityExtension.cs b/UnityProject/Assets/TEngine/Runtime/Extension/UnityExtension.cs
index 98760532..7e6a7127 100644
--- a/UnityProject/Assets/TEngine/Runtime/Extension/UnityExtension.cs
+++ b/UnityProject/Assets/TEngine/Runtime/Extension/UnityExtension.cs
@@ -132,7 +132,9 @@ namespace TEngine
         /// <param name="spriteName">图片名称。</param>
         /// <param name="isSetNativeSize">是否使用原生分辨率。</param>
         /// <param name="isAsync">是否使用异步加载。</param>
-        public static void SetSprite(this UnityEngine.UI.Image image, string spriteName, bool isSetNativeSize = false, bool isAsync = false)
+        /// <param name="customPackageName">指定资源包的名称。不传使用默认资源包</param>
+        public static void SetSprite(this UnityEngine.UI.Image image, string spriteName, bool isSetNativeSize = false,
+            bool isAsync = false, string customPackageName = "")
         {
             if (image == null)
             {
@@ -147,7 +149,8 @@ namespace TEngine
             {
                 if (!isAsync)
                 {
-                    image.sprite = GameModule.Resource.LoadAsset<Sprite>(spriteName);
+                    image.sprite =
+                        GameModule.Resource.LoadAsset<Sprite>(spriteName, customPackageName: customPackageName);
                     if (isSetNativeSize)
                     {
                         image.SetNativeSize();
@@ -167,7 +170,7 @@ namespace TEngine
                         {
                             image.SetNativeSize();
                         }
-                    });
+                    }, customPackageName: customPackageName);
                 }
             }
         }
@@ -178,7 +181,9 @@ namespace TEngine
         /// <param name="spriteRenderer">Image组件。</param>
         /// <param name="spriteName">图片名称。</param>
         /// <param name="isAsync">是否使用异步加载。</param>
-        public static void SetSprite(this SpriteRenderer spriteRenderer, string spriteName, bool isAsync = false)
+        /// <param name="customPackageName">指定资源包的名称。不传使用默认资源包</param>
+        public static void SetSprite(this SpriteRenderer spriteRenderer, string spriteName, bool isAsync = false,
+            string customPackageName = "")
         {
             if (spriteRenderer == null)
             {
@@ -193,7 +198,8 @@ namespace TEngine
             {
                 if (!isAsync)
                 {
-                    spriteRenderer.sprite = GameModule.Resource.LoadAsset<Sprite>(spriteName);
+                    spriteRenderer.sprite =
+                        GameModule.Resource.LoadAsset<Sprite>(spriteName, customPackageName: customPackageName);
                 }
                 else
                 {
@@ -205,11 +211,11 @@ namespace TEngine
                         }
 
                         spriteRenderer.sprite = operation.AssetObject as Sprite;
-                    });
+                    }, customPackageName: customPackageName);
                 }
             }
         }
-        
+
         /// <summary>
         /// 查找子节点。
         /// </summary>
@@ -221,7 +227,7 @@ namespace TEngine
             var findTrans = transform.Find(path);
             return findTrans != null ? findTrans : null;
         }
-        
+
         /// <summary>
         /// 根据名字找到子节点，主要用于dummy接口。
         /// </summary>
@@ -252,7 +258,7 @@ namespace TEngine
 
             return null;
         }
-        
+
         [TypeInferenceRule(TypeInferenceRules.TypeReferencedByFirstArgument)]
         public static Component FindChildComponent(this Type type, Transform transform, string path)
         {
@@ -264,7 +270,7 @@ namespace TEngine
 
             return null;
         }
-        
+
         public static T FindChildComponent<T>(this Transform transform, string path) where T : Component
         {
             var findTrans = transform.Find(path);
diff --git a/UnityProject/Assets/TEngine/Runtime/Modules/ResourceModule/IResourceManager.cs b/UnityProject/Assets/TEngine/Runtime/Modules/ResourceModule/IResourceManager.cs
index 639a5226..912044ea 100644
--- a/UnityProject/Assets/TEngine/Runtime/Modules/ResourceModule/IResourceManager.cs
+++ b/UnityProject/Assets/TEngine/Runtime/Modules/ResourceModule/IResourceManager.cs
@@ -86,8 +86,9 @@ namespace TEngine
         /// <summary>
         /// 初始化操作。
         /// </summary>
+        /// <param name="customPackageName">指定资源包的名称。不传使用默认资源包</param>
         /// <returns></returns>
-        InitializationOperation InitPackage();
+        InitializationOperation InitPackage(string customPackageName = "");
 
         /// <summary>
         /// 卸载资源。
diff --git a/UnityProject/Assets/TEngine/Runtime/Modules/ResourceModule/ResourceManager.cs b/UnityProject/Assets/TEngine/Runtime/Modules/ResourceModule/ResourceManager.cs
index 9c172386..4893dd9f 100644
--- a/UnityProject/Assets/TEngine/Runtime/Modules/ResourceModule/ResourceManager.cs
+++ b/UnityProject/Assets/TEngine/Runtime/Modules/ResourceModule/ResourceManager.cs
@@ -15,7 +15,7 @@ namespace TEngine
         #region Propreties
 
         /// <summary>
-        /// 资源包名称。
+        /// 默认资源包名称。
         /// </summary>
         public string PackageName { get; set; } = "DefaultPackage";
 
@@ -332,18 +332,24 @@ namespace TEngine
         /// 初始化资源包裹。
         /// </summary>
         /// <returns>初始化资源包裹操作句柄。</returns>
-        public InitializationOperation InitPackage()
+        public InitializationOperation InitPackage(string customPackageName = "")
         {
             // 创建默认的资源包
-            string packageName = PackageName;
-            var package = YooAssets.TryGetPackage(packageName);
+            var targetPackageName = string.IsNullOrEmpty(customPackageName) || customPackageName.Equals(PackageName)
+                ? PackageName
+                : customPackageName;
+            var package = YooAssets.TryGetPackage(targetPackageName);
             if (package == null)
             {
-                package = YooAssets.CreatePackage(packageName);
-                YooAssets.SetDefaultPackage(package);
+                package = YooAssets.CreatePackage(targetPackageName);
             }
 
-            DefaultPackage = package;
+            // 设置默认资源包
+            if (targetPackageName.Equals(PackageName))
+            {
+                YooAssets.SetDefaultPackage(package);
+                DefaultPackage = package;
+            }
 
 #if UNITY_EDITOR
             //编辑器模式使用。
@@ -359,7 +365,7 @@ namespace TEngine
             if (playMode == EPlayMode.EditorSimulateMode)
             {
                 var createParameters = new EditorSimulateModeParameters();
-                createParameters.SimulateManifestFilePath = EditorSimulateModeHelper.SimulateBuild(packageName);
+                createParameters.SimulateManifestFilePath = EditorSimulateModeHelper.SimulateBuild(targetPackageName);
                 initializationOperation = package.InitializeAsync(createParameters);
             }
 
diff --git a/UnityProject/Assets/TEngine/Runtime/Modules/ResourceModule/ResourceModule.cs b/UnityProject/Assets/TEngine/Runtime/Modules/ResourceModule/ResourceModule.cs
index 2f486bf9..6c1a79d7 100644
--- a/UnityProject/Assets/TEngine/Runtime/Modules/ResourceModule/ResourceModule.cs
+++ b/UnityProject/Assets/TEngine/Runtime/Modules/ResourceModule/ResourceModule.cs
@@ -230,10 +230,11 @@ namespace TEngine
         /// <summary>
         /// 初始化操作。
         /// </summary>
+        /// <param name="customPackageName">指定资源包的名称。不传使用默认资源包</param>
         /// <returns></returns>
-        public InitializationOperation InitPackage()
+        public InitializationOperation InitPackage(string customPackageName = "")
         {
-            return m_ResourceManager.InitPackage();
+            return m_ResourceManager.InitPackage(customPackageName);
         }
 
         /// <summary>
@@ -306,6 +307,27 @@ namespace TEngine
             }
         }
 
+        /// <summary>
+        /// 创建资源下载器，用于下载当前资源版本指定地址的资源文件。
+        /// </summary>
+        /// <param name="location">资源地址</param>
+        /// <param name="packageName">指定资源包的名称。不传使用默认资源包</param>
+        public ResourceDownloaderOperation CreateResourceDownloader(string location, string packageName = "")
+        {
+            if (string.IsNullOrEmpty(packageName))
+            {
+                var package = YooAssets.GetPackage(this.packageName);
+                Downloader = package.CreateResourceDownloader(location, downloadingMaxNum, failedTryAgain);
+                return Downloader;
+            }
+            else
+            {
+                var package = YooAssets.GetPackage(packageName);
+                Downloader = package.CreateResourceDownloader(location, downloadingMaxNum, failedTryAgain);
+                return Downloader;
+            }
+        }
+
         /// <summary>
         /// 清理包裹未使用的缓存文件。
         /// </summary>
@@ -507,7 +529,8 @@ namespace TEngine
         public T LoadAsset<T>(string location, Transform parent, bool needInstance = true, bool needCache = false,
             string customPackageName = "") where T : UnityEngine.Object
         {
-            return m_ResourceManager.LoadAsset<T>(location, parent, needInstance, needCache, packageName: customPackageName);
+            return m_ResourceManager.LoadAsset<T>(location, parent, needInstance, needCache,
+                packageName: customPackageName);
         }
 
         /// <summary>
@@ -538,7 +561,8 @@ namespace TEngine
         public T LoadAsset<T>(string location, Transform parent, out AssetOperationHandle handle,
             bool needCache = false, string customPackageName = "") where T : UnityEngine.Object
         {
-            return m_ResourceManager.LoadAsset<T>(location, parent, out handle, needCache, packageName: customPackageName);
+            return m_ResourceManager.LoadAsset<T>(location, parent, out handle, needCache,
+                packageName: customPackageName);
         }
 
         /// <summary>
@@ -652,7 +676,8 @@ namespace TEngine
         /// <typeparam name="T">要加载资源的类型。</typeparam>
         /// <returns>异步资源实例。</returns>
         public async UniTask<T> LoadAssetAsync<T>(string location, CancellationToken cancellationToken = default,
-            bool needInstance = true, bool needCache = false, string customPackageName = "") where T : UnityEngine.Object
+            bool needInstance = true, bool needCache = false, string customPackageName = "")
+            where T : UnityEngine.Object
         {
             return await m_ResourceManager.LoadAssetAsync<T>(location, cancellationToken, needInstance, needCache,
                 packageName: customPackageName);
@@ -699,7 +724,8 @@ namespace TEngine
         public async UniTask<RawFileOperationHandle> LoadRawAssetAsync(string location,
             CancellationToken cancellationToken = default, string customPackageName = "")
         {
-            return await m_ResourceManager.LoadRawAssetAsync(location, cancellationToken, packageName: customPackageName);
+            return await m_ResourceManager.LoadRawAssetAsync(location, cancellationToken,
+                packageName: customPackageName);
         }
 
         /// <summary>