diff --git a/src/MaaWpfGui/ViewModels/CopilotItemViewModel.cs b/src/MaaWpfGui/ViewModels/CopilotItemViewModel.cs
index bceef4f6a8..9798b76b1f 100644
--- a/src/MaaWpfGui/ViewModels/CopilotItemViewModel.cs
+++ b/src/MaaWpfGui/ViewModels/CopilotItemViewModel.cs
@@ -90,12 +90,4 @@ public class CopilotItemViewModel : PropertyChangedBase
             Instances.CopilotViewModel.SaveCopilotTask();
         }
     }
-
-    private int _index;
-
-    public int Index
-    {
-        get => _index;
-        set => SetAndNotify(ref _index, value);
-    }
 }
diff --git a/src/MaaWpfGui/ViewModels/UI/CopilotViewModel.cs b/src/MaaWpfGui/ViewModels/UI/CopilotViewModel.cs
index c801d99a56..080591c846 100644
--- a/src/MaaWpfGui/ViewModels/UI/CopilotViewModel.cs
+++ b/src/MaaWpfGui/ViewModels/UI/CopilotViewModel.cs
@@ -128,7 +128,6 @@ public partial class CopilotViewModel : Screen
         var list = JsonConvert.DeserializeObject<List<CopilotItemViewModel>>(copilotTaskList) ?? [];
         for (int i = 0; i < list.Count; i++)
         {
-            list[i].Index = i;
             CopilotItemViewModels.Add(list[i]);
         }
 
@@ -948,9 +947,9 @@ public partial class CopilotViewModel : Screen
     [UsedImplicitly]
     public void SelectCopilotTask(object? sender, MouseButtonEventArgs? e = null)
     {
-        if (e?.Source is FrameworkElement element && element.Tag is int index)
+        if (e?.Source is FrameworkElement element && element.Tag is CopilotItemViewModel item)
         {
-            Filename = CopilotItemViewModels[index].FilePath; // 假设原方法接受int参数
+            Filename = item.FilePath;
             if (e.ChangedButton == MouseButton.Right)
             {
                 UseCopilotList = false;
@@ -960,10 +959,10 @@ public partial class CopilotViewModel : Screen
 
     // UI 绑定的方法
     [UsedImplicitly]
-    public void DeleteCopilotTask(int index)
+    public void DeleteCopilotTask(CopilotItemViewModel item)
     {
-        CopilotItemViewModels.RemoveAt(index);
-        CopilotItemIndexChanged();
+        CopilotItemViewModels.Remove(item);
+        SaveCopilotTask();
     }
 
     // UI 绑定的方法
@@ -974,8 +973,7 @@ public partial class CopilotViewModel : Screen
         {
             CopilotItemViewModels.Remove(item);
         }
-
-        CopilotItemIndexChanged();
+        SaveCopilotTask();
     }
 
     // UI 绑定的方法
@@ -1659,20 +1657,20 @@ public partial class CopilotViewModel : Screen
 
             name ??= stageCode;
 
-            var item = new CopilotItemViewModel(name, cachePath, false, copilotId) { Index = CopilotItemViewModels.Count, TabIndex = CopilotTabIndex, };
+            var item = new CopilotItemViewModel(name, cachePath, false, copilotId) { TabIndex = CopilotTabIndex, };
             CopilotItemViewModels.Add(item);
         }
         else
         {
             if (flags.HasFlag(CopilotModel.DifficultyFlags.Normal))
             {
-                var item = new CopilotItemViewModel(stageCode, cachePath, false, copilotId) { Index = CopilotItemViewModels.Count, TabIndex = CopilotTabIndex, };
+                var item = new CopilotItemViewModel(stageCode, cachePath, false, copilotId) { TabIndex = CopilotTabIndex, };
                 CopilotItemViewModels.Add(item);
             }
 
             if (flags.HasFlag(CopilotModel.DifficultyFlags.Raid))
             {
-                var item = new CopilotItemViewModel(stageCode, cachePath, true, copilotId) { Index = CopilotItemViewModels.Count, TabIndex = CopilotTabIndex, };
+                var item = new CopilotItemViewModel(stageCode, cachePath, true, copilotId) { TabIndex = CopilotTabIndex, };
                 CopilotItemViewModels.Add(item);
             }
         }
@@ -1715,23 +1713,6 @@ public partial class CopilotViewModel : Screen
         });
     }
 
-    /// <summary>
-    /// 更新任务顺序
-    /// UI 绑定的方法
-    /// </summary>
-    [UsedImplicitly]
-    public void CopilotItemIndexChanged()
-    {
-        Execute.OnUIThread(() => {
-            for (int i = 0; i < CopilotItemViewModels.Count; i++)
-            {
-                CopilotItemViewModels[i].Index = i;
-            }
-
-            SaveCopilotTask();
-        });
-    }
-
     /// <summary>
     /// Starts copilot.
     /// UI 绑定的方法
diff --git a/src/MaaWpfGui/Views/UI/CopilotView.xaml b/src/MaaWpfGui/Views/UI/CopilotView.xaml
index 05e72fe546..dbc5d7977d 100644
--- a/src/MaaWpfGui/Views/UI/CopilotView.xaml
+++ b/src/MaaWpfGui/Views/UI/CopilotView.xaml
@@ -515,7 +515,7 @@
                         hc:BorderElement.CornerRadius="4,4,0,0"
                         properties:AutoScroll.AutoScroll="True"
                         BorderThickness="1,1,1,0"
-                        DragDrop.Drop="{s:Action CopilotItemIndexChanged}"
+                        DragDrop.Drop="{s:Action SaveCopilotTask}"
                         IsEnabled="{c:Binding StartEnabled}"
                         ItemsSource="{Binding Path=CopilotItemViewModels}"
                         Style="{DynamicResource NoSelectedHighlightListBoxStyle}"
@@ -559,7 +559,7 @@
                                         IsEnabled="{Binding ElementName=CopilotList, Path=DataContext.Idle}"
                                         MouseRightButtonUp="{s:Action SelectCopilotTask}"
                                         PreviewMouseLeftButtonUp="{s:Action SelectCopilotTask}"
-                                        Tag="{c:Binding Index}" />
+                                        Tag="{Binding}" />
                                     <Button
                                         Grid.Column="2"
                                         Margin="0"
@@ -570,7 +570,7 @@
                                         Background="Transparent"
                                         BorderThickness="0"
                                         Command="{s:Action DeleteCopilotTask}"
-                                        CommandParameter="{c:Binding Index}"
+                                        CommandParameter="{Binding}"
                                         IsEnabled="{Binding ElementName=CopilotList, Path=DataContext.Idle}" />
                                 </Grid>
                             </DataTemplate>