diff --git a/src/STranslate.Model/ConfigModel.cs b/src/STranslate.Model/ConfigModel.cs
index 219c5ba0..67f182db 100644
--- a/src/STranslate.Model/ConfigModel.cs
+++ b/src/STranslate.Model/ConfigModel.cs
@@ -567,7 +567,7 @@ public ConfigModel Clone()
             SourceLangIfAuto = SourceLangIfAuto,
             TargetLangIfSourceZh = TargetLangIfSourceZh,
             TargetLangIfSourceNotZh = TargetLangIfSourceNotZh,
-            ReplaceProp = (ReplaceProp)ReplaceProp.Clone(),
+            ReplaceProp = ReplaceProp.Clone(),
             Hotkeys = Hotkeys?.Clone(),
             Services = Services?.Clone(),
             OCRList = OCRList?.DeepCopy(),
diff --git a/src/STranslate.Model/ReplaceProp.cs b/src/STranslate.Model/ReplaceProp.cs
index 0e7c310c..762c19bf 100644
--- a/src/STranslate.Model/ReplaceProp.cs
+++ b/src/STranslate.Model/ReplaceProp.cs
@@ -2,7 +2,7 @@
 
 namespace STranslate.Model;
 
-public partial class ReplaceProp : ObservableObject, ICloneable
+public partial class ReplaceProp : ObservableObject
 {
     [ObservableProperty] private ITranslator? _activeService;
 
@@ -33,7 +33,7 @@ public partial class ReplaceProp : ObservableObject, ICloneable
     /// </summary>
     [ObservableProperty] private LangEnum _targetLangIfSourceNotZh = LangEnum.zh_cn;
 
-    public object Clone()
+    public ReplaceProp Clone()
     {
         return new ReplaceProp
         {
diff --git a/src/STranslate/ViewModels/Preference/ReplaceViewModel.cs b/src/STranslate/ViewModels/Preference/ReplaceViewModel.cs
index 59e88223..815d34f3 100644
--- a/src/STranslate/ViewModels/Preference/ReplaceViewModel.cs
+++ b/src/STranslate/ViewModels/Preference/ReplaceViewModel.cs
@@ -14,19 +14,28 @@ public partial class ReplaceViewModel : ObservableObject
     private readonly ConfigHelper _configHelper = Singleton<ConfigHelper>.Instance;
     private readonly TranslatorViewModel _translateVm = Singleton<TranslatorViewModel>.Instance;
     public InputViewModel InputVm => Singleton<InputViewModel>.Instance;
+    private Guid? deletedSvc;
     public ReplaceViewModel()
     {
         // View 上绑定结果从List中获取
         ReplaceProp.ActiveService = AllServices.FirstOrDefault(x => x.Identify == ReplaceProp.ActiveService?.Identify);
 
-        _translateVm.PropertyChanged += (sender, args) =>
+        _translateVm.CurTransServiceList.ListChanged += (sender, args) =>
         {
-            // 检查是否被删除
-            if (sender is not BindingList<ITranslator> services || ReplaceProp.ActiveService is null) return;
-
-            // 当服务列表中有增删时检查当前活动服务是否被删除
-            if (services.All(x => x.Identify != ReplaceProp.ActiveService?.Identify))
-                ReplaceProp.ActiveService = null;
+            switch (args.ListChangedType)
+            {
+                case ListChangedType.ItemAdded:
+                    var svc = _translateVm.CurTransServiceList[args.NewIndex];
+                    if (svc.Identify == deletedSvc)
+                    {
+                        ReplaceProp.ActiveService = svc;
+                        deletedSvc = null;
+                    }
+                    break;
+                case ListChangedType.ItemDeleted:
+                    deletedSvc = ReplaceProp.ActiveService?.Identify;
+                    break;
+            }
         };
     }
 
@@ -140,7 +149,7 @@ private async Task TranslateLlmAsync(RequestModel req, CancellationToken token)
 
     #region Property
 
-    [ObservableProperty] private BindingList<ITranslator> _allServices = Singleton<TranslatorViewModel>.Instance.CurTransServiceList.Clone();
+    [ObservableProperty] private BindingList<ITranslator> _allServices = Singleton<TranslatorViewModel>.Instance.CurTransServiceList;
 
     [ObservableProperty] private ReplaceProp _replaceProp = Singleton<ConfigHelper>.Instance.CurrentConfig?.ReplaceProp ?? new ReplaceProp();