diff --git a/lib/api/api.dart b/lib/api/api.dart
index 9cebb15..bcc7a78 100644
--- a/lib/api/api.dart
+++ b/lib/api/api.dart
@@ -1,5 +1,6 @@
 import 'dart:convert';
 
+import 'package:hive/hive.dart';
 import 'package:starcitizen_doctor/common/conf/url_conf.dart';
 import 'package:starcitizen_doctor/common/io/rs_http.dart';
 import 'package:starcitizen_doctor/data/app_placard_data.dart';
@@ -82,7 +83,13 @@ class Api {
   }
 
   static Future<String> getRepoData(String dir, String name) async {
-    final r = await RSHttp.getText("${URLConf.apiRepoPath}/$dir/$name");
+    final r = await RSHttp.getText("${URLConf.apiRepoPath}/$dir/$name",withCustomDns: await isUseInternalDNS());
     return r;
   }
+
+  static Future<bool> isUseInternalDNS() async {
+    final userBox = await Hive.openBox("app_conf");
+    final isUseInternalDNS = userBox.get("isUseInternalDNS", defaultValue: false);
+    return isUseInternalDNS;
+  }
 }
diff --git a/lib/common/conf/const_conf.dart b/lib/common/conf/const_conf.dart
index 70a06ca..e1f5ec9 100644
--- a/lib/common/conf/const_conf.dart
+++ b/lib/common/conf/const_conf.dart
@@ -5,4 +5,5 @@ class ConstConf {
   static const gameChannels = ["LIVE", "PTU", "EPTU", "TECH-PREVIEW", "HOTFIX"];
   static const isMSE =
       String.fromEnvironment("MSE", defaultValue: "false") == "true";
+  static const dohAddress = "https://223.6.6.6/resolve";
 }
diff --git a/lib/common/conf/url_conf.dart b/lib/common/conf/url_conf.dart
index b2e9a38..c9f38d6 100644
--- a/lib/common/conf/url_conf.dart
+++ b/lib/common/conf/url_conf.dart
@@ -1,3 +1,5 @@
+import 'package:starcitizen_doctor/api/api.dart';
+import 'package:starcitizen_doctor/common/io/doh_client.dart';
 import 'package:starcitizen_doctor/common/io/rs_http.dart';
 import 'package:starcitizen_doctor/common/rust/http_package.dart';
 import 'package:starcitizen_doctor/common/utils/log.dart';
@@ -38,16 +40,14 @@ class URLConf {
 
   static Future<bool> checkHost() async {
     // 使用 DNS 获取可用列表
-    final gitApiList =
-        _genFinalList(await RSHttp.dnsLookupTxt("git.dns.scbox.org"));
+    final gitApiList = _genFinalList(await dnsLookupTxt("git.dns.scbox.org"));
     dPrint("DNS gitApiList ==== $gitApiList");
     final fasterGit = await getFasterUrl(gitApiList);
     dPrint("gitApiList.Faster ==== $fasterGit");
     if (fasterGit != null) {
       gitApiHome = fasterGit;
     }
-    final rssApiList =
-        _genFinalList(await RSHttp.dnsLookupTxt("rss.dns.scbox.org"));
+    final rssApiList = _genFinalList(await dnsLookupTxt("rss.dns.scbox.org"));
     final fasterRss = await getFasterUrl(rssApiList);
     dPrint("DNS rssApiList ==== $rssApiList");
     dPrint("rssApiList.Faster ==== $fasterRss");
@@ -58,6 +58,15 @@ class URLConf {
     return isUrlCheckPass;
   }
 
+  static Future<List<String>> dnsLookupTxt(String host) async {
+    if (await Api.isUseInternalDNS()) {
+      dPrint("[URLConf] use internal DNS LookupTxt $host");
+      return RSHttp.dnsLookupTxt(host);
+    }
+    dPrint("[URLConf] use DOH LookupTxt $host");
+    return (await DohClient.resolveTXT(host)) ?? [];
+  }
+
   static Future<String?> getFasterUrl(List<String> urls) async {
     String firstUrl = "";
     int callLen = 0;
diff --git a/lib/common/io/doh_client.dart b/lib/common/io/doh_client.dart
new file mode 100644
index 0000000..0c54b2d
--- /dev/null
+++ b/lib/common/io/doh_client.dart
@@ -0,0 +1,46 @@
+import 'dart:convert';
+
+import 'package:starcitizen_doctor/common/conf/const_conf.dart';
+import 'package:starcitizen_doctor/common/io/rs_http.dart';
+import 'package:starcitizen_doctor/common/utils/log.dart';
+import 'package:starcitizen_doctor/data/doh_client_response_data.dart';
+
+class DohClient {
+  static Future<DohClientResponseData?> resolve(
+      String domain, String type) async {
+    try {
+      final r = await RSHttp.getText(
+          "${ConstConf.dohAddress}?name=$domain&type=$type");
+      final data = DohClientResponseData.fromJson(json.decode(r));
+      return data;
+    } catch (e) {
+      dPrint("DohClient.resolve error: $e");
+      return null;
+    }
+  }
+
+  static Future<List<String>?> resolveIP(String domain, String type) async {
+    final data = await resolve(domain, type);
+    if (data == null) return [];
+    return data.answer?.map((e) => _removeDataPadding(e.data)).toList();
+  }
+
+  static Future<List<String>?> resolveTXT(String domain) async {
+    final data = await resolve(domain, "TXT");
+    if (data == null) return [];
+    return data.answer?.map((e) => _removeDataPadding(e.data)).toList();
+  }
+
+  static String _removeDataPadding(String? data) {
+    // data demo: {"data":"\"https://git.scbox.xkeyc.cn,https://gitapi.scbox.org\""}
+    if (data == null) return "";
+    data = data.trim();
+    if (data.startsWith("\"")){
+      data = data.substring(1);
+    }
+    if (data.endsWith("\"")){
+      data = data.substring(0, data.length - 1);
+    }
+    return data;
+  }
+}
diff --git a/lib/data/doh_client_response_data.dart b/lib/data/doh_client_response_data.dart
new file mode 100644
index 0000000..d804125
--- /dev/null
+++ b/lib/data/doh_client_response_data.dart
@@ -0,0 +1,109 @@
+class DohClientResponseData {
+  DohClientResponseData({
+    this.status,
+    this.tc,
+    this.rd,
+    this.ra,
+    this.ad,
+    this.cd,
+    this.question,
+    this.answer,
+  });
+
+  DohClientResponseData.fromJson(dynamic json) {
+    status = json['Status'];
+    tc = json['TC'];
+    rd = json['RD'];
+    ra = json['RA'];
+    ad = json['AD'];
+    cd = json['CD'];
+    question = json['Question'] != null
+        ? DohClientResponseQuestionData.fromJson(json['Question'])
+        : null;
+    if (json['Answer'] != null) {
+      answer = [];
+      json['Answer'].forEach((v) {
+        answer?.add(DohClientResponseAnswerData.fromJson(v));
+      });
+    }
+  }
+
+  num? status;
+  bool? tc;
+  bool? rd;
+  bool? ra;
+  bool? ad;
+  bool? cd;
+  DohClientResponseQuestionData? question;
+  List<DohClientResponseAnswerData>? answer;
+
+  Map<String, dynamic> toJson() {
+    final map = <String, dynamic>{};
+    map['Status'] = status;
+    map['TC'] = tc;
+    map['RD'] = rd;
+    map['RA'] = ra;
+    map['AD'] = ad;
+    map['CD'] = cd;
+    if (question != null) {
+      map['Question'] = question?.toJson();
+    }
+    if (answer != null) {
+      map['Answer'] = answer?.map((v) => v.toJson()).toList();
+    }
+    return map;
+  }
+}
+
+class DohClientResponseAnswerData {
+  DohClientResponseAnswerData({
+    this.name,
+    this.ttl,
+    this.type,
+    this.data,
+  });
+
+  DohClientResponseAnswerData.fromJson(dynamic json) {
+    name = json['name'];
+    ttl = json['TTL'];
+    type = json['type'];
+    data = json['data'];
+  }
+
+  String? name;
+  num? ttl;
+  num? type;
+  String? data;
+
+  Map<String, dynamic> toJson() {
+    final map = <String, dynamic>{};
+    map['name'] = name;
+    map['TTL'] = ttl;
+    map['type'] = type;
+    map['data'] = data;
+    return map;
+  }
+}
+
+
+class DohClientResponseQuestionData {
+  DohClientResponseQuestionData({
+    this.name,
+    this.type,
+  });
+
+  DohClientResponseQuestionData.fromJson(dynamic json) {
+    name = json['name'];
+    type = json['type'];
+  }
+
+  String? name;
+  num? type;
+
+  Map<String, dynamic> toJson() {
+    final map = <String, dynamic>{};
+    map['name'] = name;
+    map['type'] = type;
+    return map;
+  }
+}
diff --git a/lib/ui/settings/settings_ui.dart b/lib/ui/settings/settings_ui.dart
index 1ebc4fd..4683e06 100644
--- a/lib/ui/settings/settings_ui.dart
+++ b/lib/ui/settings/settings_ui.dart
@@ -15,6 +15,12 @@ class SettingsUI extends HookConsumerWidget {
     final appGlobalState = ref.watch(appGlobalModelProvider);
     final appGlobalModel = ref.read(appGlobalModelProvider.notifier);
     return ListView(padding: const EdgeInsets.all(16), children: [
+      makeTitle("应用"),
+      makeSettingsItem(const Icon(FluentIcons.link, size: 20),
+          S.current.setting_action_create_settings_shortcut,
+          subTitle: S.current.setting_action_create_desktop_shortcut,
+          onTap: () => model.addShortCut(context)),
+      const SizedBox(height: 12),
       makeSettingsItem(
         const Icon(FontAwesomeIcons.language, size: 20),
         S.current.settings_app_language,
@@ -26,11 +32,32 @@ class SettingsUI extends HookConsumerWidget {
         showGoIcon: false,
       ),
       const SizedBox(height: 12),
-      makeSettingsItem(const Icon(FluentIcons.link, size: 20),
-          S.current.setting_action_create_settings_shortcut,
-          subTitle: S.current.setting_action_create_desktop_shortcut,
-          onTap: () => model.addShortCut(context)),
+      makeSettingsItem(
+          const Icon(FontAwesomeIcons.networkWired, size: 20), "使用内置 DNS",
+          subTitle: "开启后可能解决部分地区 DNS 污染的问题",
+          switchStatus: sate.isUseInternalDNS,
+          onSwitch: model.onChangeUseInternalDNS,
+          onTap: () => model.onChangeUseInternalDNS(!sate.isUseInternalDNS)),
       const SizedBox(height: 12),
+      makeSettingsItem(const Icon(FluentIcons.delete, size: 20),
+          S.current.setting_action_clear_translation_file_cache,
+          subTitle: S.current.setting_action_info_cache_clearing_info(
+              (sate.locationCacheSize / 1024 / 1024).toStringAsFixed(2)),
+          onTap: () => model.cleanLocationCache(context)),
+      const SizedBox(height: 12),
+      makeSettingsItem(const Icon(FluentIcons.speed_high, size: 20),
+          S.current.setting_action_tool_site_access_acceleration,
+          onTap: () =>
+              model.onChangeToolSiteMirror(!sate.isEnableToolSiteMirrors),
+          subTitle: S.current.setting_action_info_mirror_server_info,
+          onSwitch: model.onChangeToolSiteMirror,
+          switchStatus: sate.isEnableToolSiteMirrors),
+      const SizedBox(height: 12),
+      makeSettingsItem(const Icon(FluentIcons.document_set, size: 20),
+          S.current.setting_action_view_log,
+          onTap: () => model.showLogs(),
+          subTitle: S.current.setting_action_info_view_log_file),
+      makeTitle("功能"),
       makeSettingsItem(const Icon(FontAwesomeIcons.microchip, size: 20),
           S.current.setting_action_ignore_efficiency_cores_on_launch,
           subTitle: S.current
@@ -57,27 +84,19 @@ class SettingsUI extends HookConsumerWidget {
             model.delName("custom_game_path");
           }),
       const SizedBox(height: 12),
-      makeSettingsItem(const Icon(FluentIcons.delete, size: 20),
-          S.current.setting_action_clear_translation_file_cache,
-          subTitle: S.current.setting_action_info_cache_clearing_info(
-              (sate.locationCacheSize / 1024 / 1024).toStringAsFixed(2)),
-          onTap: () => model.cleanLocationCache(context)),
-      const SizedBox(height: 12),
-      makeSettingsItem(const Icon(FluentIcons.speed_high, size: 20),
-          S.current.setting_action_tool_site_access_acceleration,
-          onTap: () =>
-              model.onChangeToolSiteMirror(!sate.isEnableToolSiteMirrors),
-          subTitle: S.current.setting_action_info_mirror_server_info,
-          onSwitch: model.onChangeToolSiteMirror,
-          switchStatus: sate.isEnableToolSiteMirrors),
-      const SizedBox(height: 12),
-      makeSettingsItem(const Icon(FluentIcons.document_set, size: 20),
-          S.current.setting_action_view_log,
-          onTap: () => model.showLogs(),
-          subTitle: S.current.setting_action_info_view_log_file),
     ]);
   }
 
+  Widget makeTitle(String title) {
+    return Padding(
+      padding: const EdgeInsets.only(top: 12, bottom: 12),
+      child: Text(
+        title,
+        style: TextStyle(fontSize: 24),
+      ),
+    );
+  }
+
   Widget makeSettingsItem(
     Widget icon,
     String title, {
diff --git a/lib/ui/settings/settings_ui_model.dart b/lib/ui/settings/settings_ui_model.dart
index 49693eb..67e4786 100644
--- a/lib/ui/settings/settings_ui_model.dart
+++ b/lib/ui/settings/settings_ui_model.dart
@@ -25,6 +25,7 @@ class SettingsUIState with _$SettingsUIState {
     String? customLauncherPath,
     String? customGamePath,
     @Default(0) int locationCacheSize,
+    @Default(false) bool isUseInternalDNS,
   }) = _SettingsUIState;
 }
 
@@ -38,10 +39,11 @@ class SettingsUIModel extends _$SettingsUIModel {
   }
 
   void _initState() async {
-    _updateGameLaunchECore();
-    _loadCustomPath();
-    _loadLocationCacheSize();
-    _loadToolSiteMirrorState();
+    await _updateGameLaunchECore();
+    await _loadCustomPath();
+    await _loadLocationCacheSize();
+    await _loadToolSiteMirrorState();
+    await _loadUseInternalDNS();
   }
 
   Future<void> setGameLaunchECore(BuildContext context) async {
@@ -113,7 +115,7 @@ class SettingsUIModel extends _$SettingsUIModel {
     await confBox.put(pathKey, dir);
   }
 
-  _loadCustomPath() async {
+  Future _loadCustomPath() async {
     final confBox = await Hive.openBox("app_conf");
     final customLauncherPath = confBox.get("custom_launcher_path");
     final customGamePath = confBox.get("custom_game_path");
@@ -127,7 +129,7 @@ class SettingsUIModel extends _$SettingsUIModel {
     _initState();
   }
 
-  _loadLocationCacheSize() async {
+  Future _loadLocationCacheSize() async {
     final len1 = await SystemHelper.getDirLen(
         "${appGlobalState.applicationSupportDir}/Localizations");
     final len2 = await SystemHelper.getDirLen(
@@ -182,7 +184,7 @@ class SettingsUIModel extends _$SettingsUIModel {
     showToast(context, S.current.setting_action_info_shortcut_created);
   }
 
-  _loadToolSiteMirrorState() async {
+  Future _loadToolSiteMirrorState() async {
     final userBox = await Hive.openBox("app_conf");
     final isEnableToolSiteMirrors =
         userBox.get("isEnableToolSiteMirrors", defaultValue: false);
@@ -200,4 +202,16 @@ class SettingsUIModel extends _$SettingsUIModel {
     SystemHelper.openDir(getDPrintFile()?.absolute.path.replaceAll("/", "\\"),
         isFile: true);
   }
+
+  void onChangeUseInternalDNS(bool? b) {
+    final userBox = Hive.box("app_conf");
+    userBox.put("isUseInternalDNS", b ?? false);
+    _initState();
+  }
+
+  Future _loadUseInternalDNS() async {
+    final userBox = await Hive.openBox("app_conf");
+    final isUseInternalDNS = userBox.get("isUseInternalDNS", defaultValue: false);
+    state = state.copyWith(isUseInternalDNS: isUseInternalDNS);
+  }
 }
diff --git a/lib/ui/settings/settings_ui_model.freezed.dart b/lib/ui/settings/settings_ui_model.freezed.dart
index 50ecdd5..f053451 100644
--- a/lib/ui/settings/settings_ui_model.freezed.dart
+++ b/lib/ui/settings/settings_ui_model.freezed.dart
@@ -21,6 +21,7 @@ mixin _$SettingsUIState {
   String? get customLauncherPath => throw _privateConstructorUsedError;
   String? get customGamePath => throw _privateConstructorUsedError;
   int get locationCacheSize => throw _privateConstructorUsedError;
+  bool get isUseInternalDNS => throw _privateConstructorUsedError;
 
   /// Create a copy of SettingsUIState
   /// with the given fields replaced by the non-null parameter values.
@@ -40,7 +41,8 @@ abstract class $SettingsUIStateCopyWith<$Res> {
       String inputGameLaunchECore,
       String? customLauncherPath,
       String? customGamePath,
-      int locationCacheSize});
+      int locationCacheSize,
+      bool isUseInternalDNS});
 }
 
 /// @nodoc
@@ -63,6 +65,7 @@ class _$SettingsUIStateCopyWithImpl<$Res, $Val extends SettingsUIState>
     Object? customLauncherPath = freezed,
     Object? customGamePath = freezed,
     Object? locationCacheSize = null,
+    Object? isUseInternalDNS = null,
   }) {
     return _then(_value.copyWith(
       isEnableToolSiteMirrors: null == isEnableToolSiteMirrors
@@ -85,6 +88,10 @@ class _$SettingsUIStateCopyWithImpl<$Res, $Val extends SettingsUIState>
           ? _value.locationCacheSize
           : locationCacheSize // ignore: cast_nullable_to_non_nullable
               as int,
+      isUseInternalDNS: null == isUseInternalDNS
+          ? _value.isUseInternalDNS
+          : isUseInternalDNS // ignore: cast_nullable_to_non_nullable
+              as bool,
     ) as $Val);
   }
 }
@@ -102,7 +109,8 @@ abstract class _$$SettingsUIStateImplCopyWith<$Res>
       String inputGameLaunchECore,
       String? customLauncherPath,
       String? customGamePath,
-      int locationCacheSize});
+      int locationCacheSize,
+      bool isUseInternalDNS});
 }
 
 /// @nodoc
@@ -123,6 +131,7 @@ class __$$SettingsUIStateImplCopyWithImpl<$Res>
     Object? customLauncherPath = freezed,
     Object? customGamePath = freezed,
     Object? locationCacheSize = null,
+    Object? isUseInternalDNS = null,
   }) {
     return _then(_$SettingsUIStateImpl(
       isEnableToolSiteMirrors: null == isEnableToolSiteMirrors
@@ -145,6 +154,10 @@ class __$$SettingsUIStateImplCopyWithImpl<$Res>
           ? _value.locationCacheSize
           : locationCacheSize // ignore: cast_nullable_to_non_nullable
               as int,
+      isUseInternalDNS: null == isUseInternalDNS
+          ? _value.isUseInternalDNS
+          : isUseInternalDNS // ignore: cast_nullable_to_non_nullable
+              as bool,
     ));
   }
 }
@@ -157,7 +170,8 @@ class _$SettingsUIStateImpl implements _SettingsUIState {
       this.inputGameLaunchECore = "0",
       this.customLauncherPath,
       this.customGamePath,
-      this.locationCacheSize = 0});
+      this.locationCacheSize = 0,
+      this.isUseInternalDNS = false});
 
   @override
   @JsonKey()
@@ -172,10 +186,13 @@ class _$SettingsUIStateImpl implements _SettingsUIState {
   @override
   @JsonKey()
   final int locationCacheSize;
+  @override
+  @JsonKey()
+  final bool isUseInternalDNS;
 
   @override
   String toString() {
-    return 'SettingsUIState(isEnableToolSiteMirrors: $isEnableToolSiteMirrors, inputGameLaunchECore: $inputGameLaunchECore, customLauncherPath: $customLauncherPath, customGamePath: $customGamePath, locationCacheSize: $locationCacheSize)';
+    return 'SettingsUIState(isEnableToolSiteMirrors: $isEnableToolSiteMirrors, inputGameLaunchECore: $inputGameLaunchECore, customLauncherPath: $customLauncherPath, customGamePath: $customGamePath, locationCacheSize: $locationCacheSize, isUseInternalDNS: $isUseInternalDNS)';
   }
 
   @override
@@ -193,7 +210,9 @@ class _$SettingsUIStateImpl implements _SettingsUIState {
             (identical(other.customGamePath, customGamePath) ||
                 other.customGamePath == customGamePath) &&
             (identical(other.locationCacheSize, locationCacheSize) ||
-                other.locationCacheSize == locationCacheSize));
+                other.locationCacheSize == locationCacheSize) &&
+            (identical(other.isUseInternalDNS, isUseInternalDNS) ||
+                other.isUseInternalDNS == isUseInternalDNS));
   }
 
   @override
@@ -203,7 +222,8 @@ class _$SettingsUIStateImpl implements _SettingsUIState {
       inputGameLaunchECore,
       customLauncherPath,
       customGamePath,
-      locationCacheSize);
+      locationCacheSize,
+      isUseInternalDNS);
 
   /// Create a copy of SettingsUIState
   /// with the given fields replaced by the non-null parameter values.
@@ -221,7 +241,8 @@ abstract class _SettingsUIState implements SettingsUIState {
       final String inputGameLaunchECore,
       final String? customLauncherPath,
       final String? customGamePath,
-      final int locationCacheSize}) = _$SettingsUIStateImpl;
+      final int locationCacheSize,
+      final bool isUseInternalDNS}) = _$SettingsUIStateImpl;
 
   @override
   bool get isEnableToolSiteMirrors;
@@ -233,6 +254,8 @@ abstract class _SettingsUIState implements SettingsUIState {
   String? get customGamePath;
   @override
   int get locationCacheSize;
+  @override
+  bool get isUseInternalDNS;
 
   /// Create a copy of SettingsUIState
   /// with the given fields replaced by the non-null parameter values.
diff --git a/lib/ui/settings/settings_ui_model.g.dart b/lib/ui/settings/settings_ui_model.g.dart
index 77d964c..f8e7804 100644
--- a/lib/ui/settings/settings_ui_model.g.dart
+++ b/lib/ui/settings/settings_ui_model.g.dart
@@ -6,7 +6,7 @@ part of 'settings_ui_model.dart';
 // RiverpodGenerator
 // **************************************************************************
 
-String _$settingsUIModelHash() => r'c625c9c743ba160bedd62a5c9f3c435422c94a42';
+String _$settingsUIModelHash() => r'de58885742e29aae6b1226c16c03655a6a6b018d';
 
 /// See also [SettingsUIModel].
 @ProviderFor(SettingsUIModel)