diff --git a/src/common/Common.Search/FuzzSearch/MatchOption.cs b/src/common/Common.Search/FuzzSearch/MatchOption.cs
index 6b4c3f981f..18d977e50a 100644
--- a/src/common/Common.Search/FuzzSearch/MatchOption.cs
+++ b/src/common/Common.Search/FuzzSearch/MatchOption.cs
@@ -2,6 +2,8 @@
 // The Microsoft Corporation licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for more information.
 
+using System.Globalization;
+
 namespace Common.Search.FuzzSearch;
 
 public class MatchOption
@@ -9,7 +11,16 @@ public class MatchOption
     public bool IgnoreCase { get; set; } = true;
 
     /// <summary>
-    /// Gets or sets a value indicating whether to support Chinese PinYin
+    /// Gets or sets a value indicating whether to support Chinese PinYin.
+    /// Defaults to true when the system UI culture is Simplified Chinese.
     /// </summary>
-    public bool ChinesePinYinSupport { get; set; }
+    public bool ChinesePinYinSupport { get; set; } = IsSimplifiedChinese();
+
+    private static bool IsSimplifiedChinese()
+    {
+        var culture = CultureInfo.CurrentUICulture;
+        // Detect Simplified Chinese: zh-CN, zh-Hans, zh-Hans-*
+        return culture.Name.StartsWith("zh-CN", StringComparison.OrdinalIgnoreCase)
+            || culture.Name.StartsWith("zh-Hans", StringComparison.OrdinalIgnoreCase);
+    }
 }
diff --git a/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/SettingsModel.cs b/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/SettingsModel.cs
index 9f67077c35..dae50b3f3e 100644
--- a/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/SettingsModel.cs
+++ b/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/SettingsModel.cs
@@ -46,18 +46,6 @@ public partial class SettingsModel : ObservableObject
 
     public bool AllowExternalReload { get; set; }
 
-    public bool EnableChinesePinYinSupport
-    {
-        get => field;
-        set
-        {
-            if (SetProperty(ref field, value))
-            {
-                FuzzyStringMatcher.ChinesePinYinSupport = value;
-            }
-        }
-    }
-
     public Dictionary<string, ProviderSettings> ProviderSettings { get; set; } = [];
 
     public Dictionary<string, CommandAlias> Aliases { get; set; } = [];
diff --git a/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/SettingsViewModel.cs b/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/SettingsViewModel.cs
index f755855df1..b871ecda44 100644
--- a/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/SettingsViewModel.cs
+++ b/src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/SettingsViewModel.cs
@@ -141,15 +141,6 @@ public partial class SettingsViewModel : INotifyPropertyChanged
         }
     }
 
-    public bool EnableChinesePinYinSupport
-    {
-        get => _settings.EnableChinesePinYinSupport;
-        set
-        {
-            _settings.EnableChinesePinYinSupport = value;
-            Save();
-        }
-    }
 
     public int AutoGoBackIntervalIndex
     {
diff --git a/src/modules/cmdpal/Microsoft.CmdPal.UI/Settings/GeneralPage.xaml b/src/modules/cmdpal/Microsoft.CmdPal.UI/Settings/GeneralPage.xaml
index 040d6eb2ea..eb0264a683 100644
--- a/src/modules/cmdpal/Microsoft.CmdPal.UI/Settings/GeneralPage.xaml
+++ b/src/modules/cmdpal/Microsoft.CmdPal.UI/Settings/GeneralPage.xaml
@@ -51,9 +51,6 @@
                             </controls:SettingsCard>
                         </controls:SettingsExpander.Items>
                     </controls:SettingsExpander>
-                    <controls:SettingsCard x:Uid="Settings_GeneralPage_EnableChinesePinYinSupport_SettingsCard" HeaderIcon="{ui:FontIcon Glyph=&#xE98A;}">
-                        <ToggleSwitch IsOn="{x:Bind viewModel.EnableChinesePinYinSupport, Mode=TwoWay}" />
-                    </controls:SettingsCard>
                     <controls:SettingsCard x:Uid="Settings_GeneralPage_AutoGoHome_SettingsCard" HeaderIcon="{ui:FontIcon Glyph=&#xE80F;}">
                         <ComboBox MinWidth="{StaticResource SettingActionControlMinWidth}" SelectedIndex="{x:Bind viewModel.AutoGoBackIntervalIndex, Mode=TwoWay}">
                             <ComboBoxItem x:Uid="Settings_GeneralPage_AutoGoHome_Item_Never" />
diff --git a/src/modules/cmdpal/Microsoft.CmdPal.UI/Strings/en-us/Resources.resw b/src/modules/cmdpal/Microsoft.CmdPal.UI/Strings/en-us/Resources.resw
index 930fe6e55a..6ed0a3bfaa 100644
--- a/src/modules/cmdpal/Microsoft.CmdPal.UI/Strings/en-us/Resources.resw
+++ b/src/modules/cmdpal/Microsoft.CmdPal.UI/Strings/en-us/Resources.resw
@@ -344,12 +344,6 @@ Right-click to remove the key combination, thereby deactivating the shortcut.</v
   <data name="Settings_GeneralPage_IgnoreShortcutWhenFullscreen_SettingsCard.Description" xml:space="preserve">
     <value>Preventing disruption of the program running in fullscreen by unintentional activation of shortcut</value>
   </data>
-  <data name="Settings_GeneralPage_EnableChinesePinYinSupport_SettingsCard.Header" xml:space="preserve">
-    <value>PinYin Support for Chinese</value>
-  </data>
-  <data name="Settings_GeneralPage_EnableChinesePinYinSupport_SettingsCard.Description" xml:space="preserve">
-    <value>Search Chinese contents with PinYin</value>
-  </data>
   <data name="Settings_GeneralPage_HighlightSearch_SettingsCard.Header" xml:space="preserve">
     <value>Highlight search on activate</value>
   </data>
diff --git a/src/modules/cmdpal/extensionsdk/Microsoft.CommandPalette.Extensions.Toolkit/FuzzyStringMatcher.cs b/src/modules/cmdpal/extensionsdk/Microsoft.CommandPalette.Extensions.Toolkit/FuzzyStringMatcher.cs
index 74696ab31b..83d42953c2 100644
--- a/src/modules/cmdpal/extensionsdk/Microsoft.CommandPalette.Extensions.Toolkit/FuzzyStringMatcher.cs
+++ b/src/modules/cmdpal/extensionsdk/Microsoft.CommandPalette.Extensions.Toolkit/FuzzyStringMatcher.cs
@@ -2,6 +2,8 @@
 // The Microsoft Corporation licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for more information.
 
+using System.Globalization;
+
 using ToolGood.Words.Pinyin;
 
 namespace Microsoft.CommandPalette.Extensions.Toolkit;
@@ -12,9 +14,18 @@ public static class FuzzyStringMatcher
     private const int NOMATCH = 0;
 
     /// <summary>
-    /// Gets or sets a value indicating whether to support Chinese PinYin
+    /// Gets a value indicating whether to support Chinese PinYin.
+    /// Automatically enabled when the system UI culture is Simplified Chinese.
     /// </summary>
-    public static bool ChinesePinYinSupport { get; set; }
+    public static bool ChinesePinYinSupport { get; } = IsSimplifiedChinese();
+
+    private static bool IsSimplifiedChinese()
+    {
+        var culture = CultureInfo.CurrentUICulture;
+        // Detect Simplified Chinese: zh-CN, zh-Hans, zh-Hans-*
+        return culture.Name.StartsWith("zh-CN", StringComparison.OrdinalIgnoreCase)
+            || culture.Name.StartsWith("zh-Hans", StringComparison.OrdinalIgnoreCase);
+    }
 
     public static int ScoreFuzzy(string needle, string haystack, bool allowNonContiguousMatches = true)
     {