diff --git a/assets/translation.json b/assets/translation.json
index c1dbf46..652b60d 100644
--- a/assets/translation.json
+++ b/assets/translation.json
@@ -201,6 +201,10 @@
     "Sync Data": "同步数据",
     "Syncing Data": "正在同步数据",
     "Data Sync": "数据同步",
+    "Skip Setting Fields": "跳过设置项",
+    "Skip Setting Fields (Optional)": "跳过设置项（可选）",
+    "When sync data, skip certain setting fields, which means these won't be uploaded / override.": "同步时跳过指定设置项，这些项不会被上传或覆盖。",
+    "See source code for available fields.": "可用的设置项名称详见源码。",
     "Quick Favorite": "快速收藏",
     "Long press on the favorite button to quickly add to this folder": "长按收藏按钮快速添加到这个文件夹",
     "Added": "已添加",
@@ -624,6 +628,10 @@
     "Sync Data": "同步資料",
     "Syncing Data": "正在同步資料",
     "Data Sync": "資料同步",
+    "Skip Setting Fields": "跳過設定項",
+    "Skip Setting Fields (Optional)": "跳過設定項（可選）",
+    "When sync data, skip certain setting fields, which means these won't be uploaded / override.": "同步時跳過指定設定項，這些項不會被上傳或覆寫。",
+    "See source code for available fields.": "可用的設定項名稱詳見源碼。",
     "Quick Favorite": "快速收藏",
     "Long press on the favorite button to quickly add to this folder": "長按收藏按鈕快速添加到這個資料夾",
     "Added": "已添加",
diff --git a/lib/foundation/appdata.dart b/lib/foundation/appdata.dart
index 4b6b735..c6842f5 100644
--- a/lib/foundation/appdata.dart
+++ b/lib/foundation/appdata.dart
@@ -23,9 +23,26 @@ class Appdata with Init {
     }
     _isSavingData = true;
     try {
-      var data = jsonEncode(toJson());
+      var futures = <Future>[];
+      var json = toJson();
+      var data = jsonEncode(json);
       var file = File(FilePath.join(App.dataPath, 'appdata.json'));
-      await file.writeAsString(data);
+      futures.add(file.writeAsString(data));
+
+      var disableSyncFields = json["settings"]["disableSyncFields"] as String;
+      if (disableSyncFields.isNotEmpty){
+        var json4sync = jsonDecode(data);
+        List<String> customDisableSync = splitField(disableSyncFields);
+        for (var field in customDisableSync) {
+          json4sync["settings"].remove(field);
+        }
+        var data4sync = jsonEncode(json4sync);
+        var file4sync = File(FilePath.join(App.dataPath, 'syncdata.json'));
+        futures.add(file4sync.writeAsString(data4sync));
+      }
+
+      await Future.wait(futures);
+
     } finally {
       _isSavingData = false;
     }
@@ -59,20 +76,33 @@ class Appdata with Init {
     return {'settings': settings._data, 'searchHistory': searchHistory};
   }
 
+  List<String> splitField(String merged) {
+    return merged
+        .split(',')
+        .map((field) => field.trim())
+        .where((field) => field.isNotEmpty)
+        .toList();
+  }
+
   /// Following fields are related to device-specific data and should not be synced.
   static const _disableSync = [
     "proxy",
     "authorizationRequired",
     "customImageProcessing",
     "webdav",
+    "disableSyncFields",
   ];
 
   /// Sync data from another device
   void syncData(Map<String, dynamic> data) {
     if (data['settings'] is Map) {
       var settings = data['settings'] as Map<String, dynamic>;
+
+      List<String> customDisableSync = splitField(this.settings["disableSyncFields"] as String);
+
       for (var key in settings.keys) {
-        if (!_disableSync.contains(key)) {
+        if (!_disableSync.contains(key) &&
+            !customDisableSync.contains(key)) {
           this.settings[key] = settings[key];
         }
       }
@@ -166,6 +196,7 @@ class Settings with ChangeNotifier {
     'checkUpdateOnStart': false,
     'limitImageWidth': true,
     'webdav': [], // empty means not configured
+    "disableSyncFields": "", // "field1, field2, ..."
     'dataVersion': 0,
     'quickFavorite': null,
     'enableTurnPageByVolumeKey': true,
diff --git a/lib/pages/settings/app.dart b/lib/pages/settings/app.dart
index 217edc3..59f5ac5 100644
--- a/lib/pages/settings/app.dart
+++ b/lib/pages/settings/app.dart
@@ -100,7 +100,7 @@ class _AppSettingsState extends State<AppSettings> {
           title: "Export App Data".tl,
           callback: () async {
             var controller = showLoadingDialog(context);
-            var file = await exportAppData();
+            var file = await exportAppData(false);
             await saveFile(filename: "data.venera", file: file);
             controller.close();
           },
@@ -353,6 +353,8 @@ class _WebdavSettingState extends State<_WebdavSetting> {
   String url = "";
   String user = "";
   String pass = "";
+  String disableSync = "";
+
   bool autoSync = true;
 
   bool isTesting = false;
@@ -364,6 +366,9 @@ class _WebdavSettingState extends State<_WebdavSetting> {
     if (appdata.settings['webdav'] is! List) {
       appdata.settings['webdav'] = [];
     }
+    if (appdata.settings['disableSyncFields'].trim().isNotEmpty) {
+      disableSync = appdata.settings['disableSyncFields'];
+    }
     var configs = appdata.settings['webdav'] as List;
     if (configs.whereType<String>().length != 3) {
       return;
@@ -418,6 +423,56 @@ class _WebdavSettingState extends State<_WebdavSetting> {
               onChanged: (value) => pass = value,
             ),
             const SizedBox(height: 12),
+            TextField(
+              decoration: InputDecoration(
+                labelText: "Skip Setting Fields (Optional)".tl,
+                hintText: "field0, field1, field2, ...",
+                hintStyle: TextStyle(color: Theme.of(context).hintColor),
+                border: OutlineInputBorder(),
+                suffixIcon: IconButton(
+                  icon: Icon(Icons.help_outline),
+                  onPressed: () {
+                    showDialog(
+                      context: context,
+                      builder: (_) => AlertDialog(
+                        title: Text("Skip Setting Fields".tl),
+                        content: Column(
+                          mainAxisSize: MainAxisSize.min,
+                          crossAxisAlignment: CrossAxisAlignment.start,
+                          children: [
+                            Text(
+                              "When sync data, skip certain setting fields, which means these won't be uploaded / override.".tl,
+                            ),
+                            const SizedBox(height: 12),
+                            Row(
+                              children: [
+                                Expanded(
+                                  child: Text(
+                                    "See source code for available fields.".tl,
+                                  ),
+                                ),
+                                Align(
+                                  alignment: Alignment.centerRight,
+                                  child: IconButton(
+                                    icon: const Icon(Icons.open_in_new),
+                                    onPressed: () {
+                                      launchUrlString("https://github.com/venera-app/venera/blob/b08f11f6ac49bd07d34b4fcde233ed07e86efbc9/lib/foundation/appdata.dart#L138");
+                                    },
+                                  ),
+                                ),
+                              ],
+                            ),
+                          ],
+                        ),
+                      ),
+                    );
+                  },
+                ),
+              ),
+              controller: TextEditingController(text: disableSync),
+              onChanged: (value) => disableSync = value,
+            ),
+            const SizedBox(height: 12),
             ListTile(
               leading: Icon(Icons.sync),
               title: Text("Auto Sync Data".tl),
@@ -494,6 +549,7 @@ class _WebdavSettingState extends State<_WebdavSetting> {
                   }
 
                   appdata.settings['webdav'] = [url, user, pass];
+                  appdata.settings['disableSyncFields'] = disableSync;
                   appdata.implicitData['webdavAutoSync'] = autoSync;
                   appdata.writeImplicitData();
 
diff --git a/lib/utils/data.dart b/lib/utils/data.dart
index bd5195b..8ea6632 100644
--- a/lib/utils/data.dart
+++ b/lib/utils/data.dart
@@ -15,7 +15,7 @@ import 'package:zip_flutter/zip_flutter.dart';
 
 import 'io.dart';
 
-Future<File> exportAppData() async {
+Future<File> exportAppData([bool sync = true]) async {
   var time = DateTime.now().millisecondsSinceEpoch ~/ 1000;
   var cacheFilePath = FilePath.join(App.cachePath, '$time.venera');
   var cacheFile = File(cacheFilePath);
@@ -27,7 +27,7 @@ Future<File> exportAppData() async {
     var zipFile = ZipFile.open(cacheFilePath);
     var historyFile = FilePath.join(dataPath, "history.db");
     var localFavoriteFile = FilePath.join(dataPath, "local_favorite.db");
-    var appdata = FilePath.join(dataPath, "appdata.json");
+    var appdata = FilePath.join(dataPath, sync ? "syncdata.json" : "appdata.json");
     var cookies = FilePath.join(dataPath, "cookie.db");
     zipFile.addFile("history.db", historyFile);
     zipFile.addFile("local_favorite.db", localFavoriteFile);
diff --git a/lib/utils/data_sync.dart b/lib/utils/data_sync.dart
index 2d6e048..e1ca58f 100644
--- a/lib/utils/data_sync.dart
+++ b/lib/utils/data_sync.dart
@@ -130,7 +130,9 @@ class DataSync with ChangeNotifier {
       try {
         appdata.settings['dataVersion']++;
         await appdata.saveData(false);
-        var data = await exportAppData();
+        var data = await exportAppData(
+            appdata.settings['disableSyncFields'].toString().isNotEmpty
+        );
         var time =
             (DateTime.now().millisecondsSinceEpoch ~/ 86400000).toString();
         var filename = time;