diff --git a/UnityProject/Assets/GameScripts/Main/Procedure/ProcedureInitPackage.cs b/UnityProject/Assets/GameScripts/Main/Procedure/ProcedureInitPackage.cs
index 123f7e65..a3ffc2ca 100644
--- a/UnityProject/Assets/GameScripts/Main/Procedure/ProcedureInitPackage.cs
+++ b/UnityProject/Assets/GameScripts/Main/Procedure/ProcedureInitPackage.cs
@@ -78,7 +78,8 @@ namespace GameMain
                         ChangeState<ProcedureInitResources>(procedureOwner);
                     }
                     // 可更新模式。
-                    else if (playMode == EPlayMode.HostPlayMode)
+                    else if (playMode == EPlayMode.HostPlayMode ||
+                             playMode == EPlayMode.WebPlayMode)
                     {
                         // 打开启动UI。
                         UILoadMgr.Show(UIDefine.UILoadUpdate);
@@ -86,12 +87,6 @@ namespace GameMain
                         Log.Info("Updatable resource mode detected.");
                         ChangeState<ProcedureUpdateVersion>(procedureOwner);
                     }
-                    // 可更新模式。
-                    else if (playMode == EPlayMode.WebPlayMode)
-                    {
-                        Log.Info("WebPlayMode resource mode detected.");
-                        ChangeState<ProcedurePreload>(procedureOwner);
-                    }
                     else
                     {
                         Log.Error("UnKnow resource mode detected Please check???");
diff --git a/UnityProject/Assets/GameScripts/Main/Procedure/ProcedureUpdateManifest.cs b/UnityProject/Assets/GameScripts/Main/Procedure/ProcedureUpdateManifest.cs
index 301408eb..89b053e7 100644
--- a/UnityProject/Assets/GameScripts/Main/Procedure/ProcedureUpdateManifest.cs
+++ b/UnityProject/Assets/GameScripts/Main/Procedure/ProcedureUpdateManifest.cs
@@ -35,6 +35,14 @@ namespace GameMain
                 //更新成功
                 //注意：保存资源版本号作为下次默认启动的版本!
                 operation.SavePackageVersion();
+                
+                if (GameModule.Resource.PlayMode == EPlayMode.WebPlayMode ||
+                    GameModule.Resource.UpdatableWhilePlaying)
+                {
+                    // 边玩边下载还可以拓展首包支持。
+                    ChangeState<ProcedurePreload>(procedureOwner);
+                    return;
+                }
                 ChangeState<ProcedureCreateDownloader>(procedureOwner);
             }
             else
diff --git a/UnityProject/Assets/TEngine/Editor/Inspector/ResourceModuleInspector.cs b/UnityProject/Assets/TEngine/Editor/Inspector/ResourceModuleInspector.cs
index 8a9cac43..1a70d5d0 100644
--- a/UnityProject/Assets/TEngine/Editor/Inspector/ResourceModuleInspector.cs
+++ b/UnityProject/Assets/TEngine/Editor/Inspector/ResourceModuleInspector.cs
@@ -22,6 +22,7 @@ namespace TEngine.Editor.Inspector
         };
 
         private SerializedProperty m_PlayMode = null;
+        private SerializedProperty m_UpdatableWhilePlaying = null;
         private SerializedProperty m_VerifyLevel = null;
         private SerializedProperty m_Milliseconds = null;
         private SerializedProperty m_ReadWritePathType = null;
@@ -72,6 +73,8 @@ namespace TEngine.Editor.Inspector
 
                 m_ReadWritePathType.enumValueIndex = (int)(ReadWritePathType)EditorGUILayout.EnumPopup("Read-Write Path Type", t.ReadWritePathType);
             }
+            EditorGUILayout.PropertyField(m_UpdatableWhilePlaying);
+            
             EditorGUI.EndDisabledGroup();
 
             int milliseconds = EditorGUILayout.DelayedIntField("Milliseconds", m_Milliseconds.intValue);
@@ -221,6 +224,7 @@ namespace TEngine.Editor.Inspector
         private void OnEnable()
         {
             m_PlayMode = serializedObject.FindProperty("playMode");
+            m_UpdatableWhilePlaying = serializedObject.FindProperty("m_UpdatableWhilePlaying");
             m_VerifyLevel = serializedObject.FindProperty("VerifyLevel");
             m_Milliseconds = serializedObject.FindProperty("Milliseconds");
             m_ReadWritePathType = serializedObject.FindProperty("m_ReadWritePathType");
diff --git a/UnityProject/Assets/TEngine/Runtime/Modules/ResourceModule/ResourceModule.cs b/UnityProject/Assets/TEngine/Runtime/Modules/ResourceModule/ResourceModule.cs
index bd85d52f..1d70231c 100644
--- a/UnityProject/Assets/TEngine/Runtime/Modules/ResourceModule/ResourceModule.cs
+++ b/UnityProject/Assets/TEngine/Runtime/Modules/ResourceModule/ResourceModule.cs
@@ -74,6 +74,16 @@ namespace TEngine
 #endif
             }
         }
+        
+        /// <summary>
+        /// 是否支持边玩边下载。
+        /// </summary>
+        [SerializeField] private bool m_UpdatableWhilePlaying = false;
+
+        /// <summary>
+        /// 是否支持边玩边下载。
+        /// </summary>
+        public bool UpdatableWhilePlaying => m_UpdatableWhilePlaying;
 
         /// <summary>
         /// 下载文件校验等级。