diff --git a/src/MaaWpfGui/Constants/ConfigurationKeys.cs b/src/MaaWpfGui/Constants/ConfigurationKeys.cs
index d80e117326..654dfde76b 100644
--- a/src/MaaWpfGui/Constants/ConfigurationKeys.cs
+++ b/src/MaaWpfGui/Constants/ConfigurationKeys.cs
@@ -196,7 +196,9 @@ namespace MaaWpfGui.Constants
         public const string UpdateProxy = "VersionUpdate.Proxy";
         public const string ProxyType = "VersionUpdate.ProxyType";
         public const string VersionType = "VersionUpdate.VersionType";
-        public const string ResourceUpdateSource = "VersionUpdate.ResourceUpdateSource";
+
+        // public const string ResourceUpdateSource = "VersionUpdate.ResourceUpdateSource";
+        // MirrorChyanCdk 迁到新配置的话就不用加 ResourceUpdateSource 了，现在本体更新也加上了 MirrorChyan
         public const string MirrorChyanCdk = "VersionUpdate.ResourceUpdateSource.MirrorChyanCdk";
         public const string UpdateCheck = "VersionUpdate.UpdateCheck";
         public const string UpdateAutoCheck = "VersionUpdate.ScheduledUpdateCheck";
diff --git a/src/MaaWpfGui/Models/ResourceUpdater.cs b/src/MaaWpfGui/Models/ResourceUpdater.cs
index 52d1081fee..e0cc391027 100644
--- a/src/MaaWpfGui/Models/ResourceUpdater.cs
+++ b/src/MaaWpfGui/Models/ResourceUpdater.cs
@@ -654,19 +654,13 @@ namespace MaaWpfGui.Models
                 return ret;
             }
 
-            switch (SettingsViewModel.VersionUpdateSettings.ResourceUpdateSource)
+            if (!string.IsNullOrEmpty(SettingsViewModel.VersionUpdateSettings.MirrorChyanCdk))
             {
-                case "Github":
-                    break;
-
-                case "MirrorChyan":
-                    if (await DownloadFromMirrorChyanAsync(uri))
-                    {
-                        SettingsViewModel.VersionUpdateSettings.IsCheckingForUpdates = false;
-                        return CheckUpdateRetT.OnlyGameResourceUpdated;
-                    }
-
-                    break;
+                if (await DownloadFromMirrorChyanAsync(uri))
+                {
+                    SettingsViewModel.VersionUpdateSettings.IsCheckingForUpdates = false;
+                    return CheckUpdateRetT.OnlyGameResourceUpdated;
+                }
             }
 
             SettingsViewModel.VersionUpdateSettings.IsCheckingForUpdates = false;
diff --git a/src/MaaWpfGui/Res/Localizations/en-us.xaml b/src/MaaWpfGui/Res/Localizations/en-us.xaml
index fca7bb995e..8848faf120 100644
--- a/src/MaaWpfGui/Res/Localizations/en-us.xaml
+++ b/src/MaaWpfGui/Res/Localizations/en-us.xaml
@@ -240,7 +240,6 @@ You can cancel this popup by clicking the Settings - About Us - Issue Reporting
     <system:String x:Key="UpdateCheckNow">Check update</system:String>
     <system:String x:Key="ShowChangelog">Changelog</system:String>
     <system:String x:Key="ResourceUpdate">Resource update</system:String>
-    <system:String x:Key="ResourceUpdateSource">Resource Update Source</system:String>
     <system:String x:Key="MirrorChyan">Mirror-Chyan</system:String>
     <system:String x:Key="MirrorChyanResourceUpdateTip">Mirror-chan has detected a resource version update. Please go to 'Settings - Software Update' to configure CDK or update the resource version using the GitHub source</system:String>
     <system:String x:Key="NewVersionFoundTitle">New Version Found</system:String>
diff --git a/src/MaaWpfGui/Res/Localizations/ja-jp.xaml b/src/MaaWpfGui/Res/Localizations/ja-jp.xaml
index fb0d01e25d..815b10e1e7 100644
--- a/src/MaaWpfGui/Res/Localizations/ja-jp.xaml
+++ b/src/MaaWpfGui/Res/Localizations/ja-jp.xaml
@@ -240,7 +240,6 @@
     <system:String x:Key="UpdateCheckNow">アップデートを確認する</system:String>
     <system:String x:Key="ShowChangelog">変更履歴</system:String>
     <system:String x:Key="ResourceUpdate">リソース更新</system:String>
-    <system:String x:Key="ResourceUpdateSource">リソース更新ソース</system:String>
     <system:String x:Key="MirrorChyan">ミラーちゃん</system:String>
     <system:String x:Key="MirrorChyanResourceUpdateTip">Mirrorちゃんがリソースのバージョン更新を検出しましたが。「設定-ソフトウェア更新」でCDKを設定するか、GitHubのソースを使用してリソースのバージョンを更新してください。</system:String>
     <system:String x:Key="NewVersionFoundTitle">新しいバージョンが見つかりました</system:String>
diff --git a/src/MaaWpfGui/Res/Localizations/ko-kr.xaml b/src/MaaWpfGui/Res/Localizations/ko-kr.xaml
index f11ebc344e..7bd7bb67ba 100644
--- a/src/MaaWpfGui/Res/Localizations/ko-kr.xaml
+++ b/src/MaaWpfGui/Res/Localizations/ko-kr.xaml
@@ -240,7 +240,6 @@
     <system:String x:Key="UpdateCheckNow">지금 업데이트</system:String>
     <system:String x:Key="ShowChangelog">변경 내역</system:String>
     <system:String x:Key="ResourceUpdate">리소스 업데이트</system:String>
-    <system:String x:Key="ResourceUpdateSource">리소스 업데이트 소스</system:String>
     <system:String x:Key="MirrorChyan">미러짱</system:String>
     <system:String x:Key="MirrorChyanResourceUpdateTip">Mirror-chan 리소스 버전 업데이트 확인. '설정-소프트웨어 업데이트'로 이동하여 CDK를 구성하거나 GitHub 소스를 사용하여 리소스 버전을 업데이트하세요.</system:String>
     <system:String x:Key="NewVersionFoundTitle">새로운 버전 확인</system:String>
diff --git a/src/MaaWpfGui/Res/Localizations/zh-cn.xaml b/src/MaaWpfGui/Res/Localizations/zh-cn.xaml
index 9bc2f7848b..1ef5dd8b10 100644
--- a/src/MaaWpfGui/Res/Localizations/zh-cn.xaml
+++ b/src/MaaWpfGui/Res/Localizations/zh-cn.xaml
@@ -243,7 +243,6 @@
     <system:String x:Key="UpdateCheckNow">检查更新</system:String>
     <system:String x:Key="ShowChangelog">更新日志</system:String>
     <system:String x:Key="ResourceUpdate">资源更新</system:String>
-    <system:String x:Key="ResourceUpdateSource">资源更新更新源</system:String>
     <system:String x:Key="MirrorChyan">Mirror 酱</system:String>
     <system:String x:Key="MirrorChyanResourceUpdateTip">Mirror 酱检查到资源版本更新，可前往「设置-软件更新」配置 CDK 或使用 github 源进行资源版本更新</system:String>
     <system:String x:Key="NewVersionFoundTitle">检测到新版本</system:String>
diff --git a/src/MaaWpfGui/Res/Localizations/zh-tw.xaml b/src/MaaWpfGui/Res/Localizations/zh-tw.xaml
index f4e5b2ed7b..5df6c2b760 100644
--- a/src/MaaWpfGui/Res/Localizations/zh-tw.xaml
+++ b/src/MaaWpfGui/Res/Localizations/zh-tw.xaml
@@ -240,7 +240,6 @@
     <system:String x:Key="UpdateCheckNow">檢查更新</system:String>
     <system:String x:Key="ShowChangelog">更新日誌</system:String>
     <system:String x:Key="ResourceUpdate">資源更新</system:String>
-    <system:String x:Key="ResourceUpdateSource">資源更新來源</system:String>
     <system:String x:Key="MirrorChyan">Mirror 醬</system:String>
     <system:String x:Key="MirrorChyanResourceUpdateTip">Mirror 醬檢查到資源版本更新，可前往「設定-軟體更新」配置 CDK 或使用 github 源進行資源版本更新</system:String>
     <system:String x:Key="NewVersionFoundTitle">檢測到新版本</system:String>
diff --git a/src/MaaWpfGui/ViewModels/UserControl/Settings/VersionUpdateSettingsUserControlModel.cs b/src/MaaWpfGui/ViewModels/UserControl/Settings/VersionUpdateSettingsUserControlModel.cs
index 6fd11a95e4..c683663f4e 100644
--- a/src/MaaWpfGui/ViewModels/UserControl/Settings/VersionUpdateSettingsUserControlModel.cs
+++ b/src/MaaWpfGui/ViewModels/UserControl/Settings/VersionUpdateSettingsUserControlModel.cs
@@ -212,26 +212,6 @@ public class VersionUpdateSettingsUserControlModel : PropertyChangedBase
 
     private bool _updateCheck = Convert.ToBoolean(ConfigurationHelper.GetGlobalValue(ConfigurationKeys.UpdateCheck, bool.TrueString));
 
-    public List<GenericCombinedData<string>> ResourceUpdateSourceList { get; } = [
-        new() { Display = "Github", Value = "Github" },
-        new() { Display = LocalizationHelper.GetString("MirrorChyan"), Value = "MirrorChyan" },
-    ];
-
-    private string _resourceUpdateSource = ConfigurationHelper.GetGlobalValue(ConfigurationKeys.ResourceUpdateSource, "Github");
-
-    /// <summary>
-    /// Gets or sets the type of version to update.
-    /// </summary>
-    public string ResourceUpdateSource
-    {
-        get => _resourceUpdateSource;
-        set
-        {
-            SetAndNotify(ref _resourceUpdateSource, value);
-            ConfigurationHelper.SetGlobalValue(ConfigurationKeys.ResourceUpdateSource, value);
-        }
-    }
-
     private string _mirrorChyanCdk = SimpleEncryptionHelper.Decrypt(ConfigurationHelper.GetGlobalValue(ConfigurationKeys.MirrorChyanCdk, string.Empty));
 
     public string MirrorChyanCdk
@@ -413,24 +393,10 @@ public class VersionUpdateSettingsUserControlModel : PropertyChangedBase
     public async Task ManualUpdateResource()
     {
         IsCheckingForUpdates = true;
-        var success = false;
-        switch (ResourceUpdateSource)
-        {
-            case "Github":
-                if (await ResourceUpdater.UpdateFromGithubAsync())
-                {
-                    success = true;
-                }
 
-                break;
-            case "MirrorChyan":
-                if (await ResourceUpdater.UpdateFromMirrorChyanAsync())
-                {
-                    success = true;
-                }
-
-                break;
-        }
+        var success = string.IsNullOrEmpty(MirrorChyanCdk)
+            ? await ResourceUpdater.UpdateFromGithubAsync()
+            : await ResourceUpdater.UpdateFromMirrorChyanAsync();
 
         if (success)
         {
diff --git a/src/MaaWpfGui/Views/UserControl/Settings/VersionUpdateSettingsUserControl.xaml b/src/MaaWpfGui/Views/UserControl/Settings/VersionUpdateSettingsUserControl.xaml
index 807a1a9650..2ebb7a2ea6 100644
--- a/src/MaaWpfGui/Views/UserControl/Settings/VersionUpdateSettingsUserControl.xaml
+++ b/src/MaaWpfGui/Views/UserControl/Settings/VersionUpdateSettingsUserControl.xaml
@@ -74,26 +74,15 @@
                         SelectedValue="{Binding VersionType}"
                         SelectedValuePath="Value" />
                     <StackPanel>
-                        <hc:ComboBox
-                            Width="150"
-                            Margin="10"
-                            HorizontalAlignment="Left"
-                            VerticalAlignment="Center"
-                            hc:TitleElement.Title="{DynamicResource ResourceUpdateSource}"
-                            DisplayMemberPath="Display"
-                            ItemsSource="{Binding ResourceUpdateSourceList}"
-                            SelectedValue="{Binding ResourceUpdateSource}"
-                            SelectedValuePath="Value" />
                         <hc:PasswordBox
                             Width="150"
                             Margin="10"
                             HorizontalAlignment="Left"
                             VerticalAlignment="Center"
-                            hc:TitleElement.Title="CDK"
+                            hc:TitleElement.Title="MirrorChyan CDK"
                             IsSafeEnabled="False"
                             ShowEyeButton="True"
-                            UnsafePassword="{Binding MirrorChyanCdk}"
-                            Visibility="{c:Binding 'ResourceUpdateSource == &quot;MirrorChyan&quot;'}" />
+                            UnsafePassword="{Binding MirrorChyanCdk}" />
                         <controls:TextBlock HorizontalAlignment="Center" VerticalAlignment="Center">
                             <Hyperlink
                                 Cursor="Hand"