diff --git a/src/MaaWpfGui/Main/AsstProxy.cs b/src/MaaWpfGui/Main/AsstProxy.cs
index 2790c9e42a..8155cd911c 100644
--- a/src/MaaWpfGui/Main/AsstProxy.cs
+++ b/src/MaaWpfGui/Main/AsstProxy.cs
@@ -638,6 +638,7 @@ namespace MaaWpfGui.Main
                     _latestTaskId.Clear();
 
                     Instances.TaskQueueViewModel.ResetFightVariables();
+                    Instances.TaskQueueViewModel.ResetTaskSelection();
                     _runningState.SetIdle(true);
                     Instances.RecognizerViewModel.GachaDone = true;
 
diff --git a/src/MaaWpfGui/ViewModels/DragItemViewModel.cs b/src/MaaWpfGui/ViewModels/DragItemViewModel.cs
index 25f7c5c955..4099dd3a7e 100644
--- a/src/MaaWpfGui/ViewModels/DragItemViewModel.cs
+++ b/src/MaaWpfGui/ViewModels/DragItemViewModel.cs
@@ -49,7 +49,7 @@ namespace MaaWpfGui.ViewModels
             Name = name;
             OriginalName = originalName;
             _storageKey = storageKey;
-            _isChecked = Convert.ToBoolean(ConfigurationHelper.GetCheckedStorage(storageKey, originalName, bool.TrueString));
+            IsChecked = Convert.ToBoolean(ConfigurationHelper.GetCheckedStorage(storageKey, originalName, bool.TrueString));
         }
 
         private string _originalName;
@@ -74,19 +74,29 @@ namespace MaaWpfGui.ViewModels
             set => SetAndNotify(ref _name, value);
         }
 
-        private bool _isChecked;
+        private bool? _isCheckedWithNull;
+
+        /// <summary>
+        /// Gets or sets a value indicating whether gets or sets whether the key is checked with null.
+        /// </summary>
+        public bool? IsCheckedWithNull
+        {
+            get => _isCheckedWithNull;
+            set
+            {
+                SetAndNotify(ref _isCheckedWithNull, value);
+                value ??= false;
+                ConfigurationHelper.SetCheckedStorage(_storageKey, OriginalName, value.ToString());
+            }
+        }
 
         /// <summary>
         /// Gets or sets a value indicating whether gets or sets whether the key is checked.
         /// </summary>
         public bool IsChecked
         {
-            get => _isChecked;
-            set
-            {
-                SetAndNotify(ref _isChecked, value);
-                ConfigurationHelper.SetCheckedStorage(_storageKey, OriginalName, value.ToString());
-            }
+            get => IsCheckedWithNull != false;
+            set => IsCheckedWithNull = value;
         }
 
         // 换成图标的话要这个，暂时没用
diff --git a/src/MaaWpfGui/ViewModels/UI/TaskQueueViewModel.cs b/src/MaaWpfGui/ViewModels/UI/TaskQueueViewModel.cs
index f66d1e087d..8ec44e77fe 100644
--- a/src/MaaWpfGui/ViewModels/UI/TaskQueueViewModel.cs
+++ b/src/MaaWpfGui/ViewModels/UI/TaskQueueViewModel.cs
@@ -342,6 +342,7 @@ namespace MaaWpfGui.ViewModels.UI
                 }
 
                 ResetFightVariables();
+                ResetTaskSelection();
                 RefreshCustomInfrastPlanIndexByPeriod();
             }
 
@@ -751,6 +752,20 @@ namespace MaaWpfGui.ViewModels.UI
             }
         }
 
+        /// <summary>
+        /// Reset unsaved task selection.
+        /// </summary>
+        public void ResetTaskSelection()
+        {
+            foreach (var item in TaskItemViewModels)
+            {
+                if (item.IsCheckedWithNull == null)
+                {
+                    item.IsChecked = false;
+                }
+            }
+        }
+
         private async Task<bool> ConnectToEmulator()
         {
             string errMsg = string.Empty;
diff --git a/src/MaaWpfGui/Views/UI/TaskQueueView.xaml b/src/MaaWpfGui/Views/UI/TaskQueueView.xaml
index f933e52568..df82324784 100644
--- a/src/MaaWpfGui/Views/UI/TaskQueueView.xaml
+++ b/src/MaaWpfGui/Views/UI/TaskQueueView.xaml
@@ -7,6 +7,7 @@
     xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
     xmlns:dd="urn:gong-wpf-dragdrop"
     xmlns:hc="https://handyorg.github.io/handycontrol"
+    xmlns:helper="clr-namespace:MaaWpfGui.Helper"
     xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
     xmlns:properties="clr-namespace:MaaWpfGui.Styles.Properties"
     xmlns:s="https://github.com/canton7/Stylet"
@@ -68,8 +69,11 @@
                                         Grid.ColumnSpan="2"
                                         HorizontalAlignment="Left"
                                         Content="{Binding Name}"
-                                        IsChecked="{Binding IsChecked}"
-                                        IsHitTestVisible="{Binding ElementName=TaskList, Path=DataContext.Idle}" />
+                                        IsChecked="{Binding IsCheckedWithNull}"
+                                        IsHitTestVisible="{Binding ElementName=TaskList, Path=DataContext.Idle}"
+                                        MouseRightButtonUp="{s:Action ToggleCheckBoxNullOnRightClick,
+                                                                      Target={x:Type helper:CheckBoxHelper}}"
+                                        ToolTip="{DynamicResource CheckBoxesNotSavedAsNull}" />
                                     <hc:ButtonGroup Grid.Column="1" HorizontalAlignment="Left">
                                         <!--  ReSharper disable once Xaml.StaticResourceNotResolved  -->
                                         <RadioButton