diff --git a/XplorePlane/Events/AddOperatorRequestedEvent.cs b/XplorePlane/Events/AddOperatorRequestedEvent.cs
new file mode 100644
index 0000000..7643779
--- /dev/null
+++ b/XplorePlane/Events/AddOperatorRequestedEvent.cs
@@ -0,0 +1,11 @@
+using Prism.Events;
+
+namespace XplorePlane.Events
+{
+    /// <summary>
+    /// 请求向当前流水线追加算子的事件，由算子工具箱发布，PipelineEditorViewModel 订阅
+    /// </summary>
+    public sealed class AddOperatorRequestedEvent : PubSubEvent<string>
+    {
+    }
+}
diff --git a/XplorePlane/ViewModels/ImageProcessing/OperatorToolboxViewModel.cs b/XplorePlane/ViewModels/ImageProcessing/OperatorToolboxViewModel.cs
index b704c3f..027f803 100644
--- a/XplorePlane/ViewModels/ImageProcessing/OperatorToolboxViewModel.cs
+++ b/XplorePlane/ViewModels/ImageProcessing/OperatorToolboxViewModel.cs
@@ -1,8 +1,11 @@
+using Prism.Commands;
+using Prism.Events;
 using Prism.Mvvm;
 using System;
 using System.Collections.Generic;
 using System.Collections.ObjectModel;
 using System.Linq;
+using XplorePlane.Events;
 using XplorePlane.Services;
 
 namespace XplorePlane.ViewModels
@@ -35,17 +38,20 @@ namespace XplorePlane.ViewModels
     public class OperatorToolboxViewModel : BindableBase
     {
         private readonly IImageProcessingService _imageProcessingService;
+        private readonly IEventAggregator _eventAggregator;
         private string _searchText = string.Empty;
         private OperatorGroupViewModel _selectedGroup;
 
         // UI 元数据（分类 + 图标）由 ProcessorUiMetadata 统一提供，保持工具箱与流水线图标一致
 
-        public OperatorToolboxViewModel(IImageProcessingService imageProcessingService)
+        public OperatorToolboxViewModel(IImageProcessingService imageProcessingService, IEventAggregator eventAggregator)
         {
             _imageProcessingService = imageProcessingService ?? throw new ArgumentNullException(nameof(imageProcessingService));
+            _eventAggregator = eventAggregator ?? throw new ArgumentNullException(nameof(eventAggregator));
             AvailableOperators = new ObservableCollection<OperatorDescriptor>();
             FilteredOperators = new ObservableCollection<OperatorDescriptor>();
             FilteredGroups = new ObservableCollection<OperatorGroupViewModel>();
+            AddOperatorCommand = new DelegateCommand<string>(AddOperator);
             LoadOperators();
         }
 
@@ -53,6 +59,8 @@ namespace XplorePlane.ViewModels
         public ObservableCollection<OperatorDescriptor> FilteredOperators { get; }
         public ObservableCollection<OperatorGroupViewModel> FilteredGroups { get; }
 
+        public DelegateCommand<string> AddOperatorCommand { get; }
+
         public OperatorGroupViewModel SelectedGroup
         {
             get => _selectedGroup;
@@ -124,5 +132,11 @@ namespace XplorePlane.ViewModels
             "检测分析" => 6,
             _ => 99
         };
+
+        private void AddOperator(string operatorKey)
+        {
+            if (!string.IsNullOrWhiteSpace(operatorKey))
+                _eventAggregator.GetEvent<AddOperatorRequestedEvent>().Publish(operatorKey);
+        }
     }
 }
diff --git a/XplorePlane/ViewModels/ImageProcessing/PipelineEditorViewModel.cs b/XplorePlane/ViewModels/ImageProcessing/PipelineEditorViewModel.cs
index 2494bfd..f0233c0 100644
--- a/XplorePlane/ViewModels/ImageProcessing/PipelineEditorViewModel.cs
+++ b/XplorePlane/ViewModels/ImageProcessing/PipelineEditorViewModel.cs
@@ -83,6 +83,9 @@ namespace XplorePlane.ViewModels
 
             _eventAggregator.GetEvent<ManualImageLoadedEvent>()
                 .Subscribe(OnManualImageLoaded);
+
+            _eventAggregator.GetEvent<AddOperatorRequestedEvent>()
+                .Subscribe(key => { if (CanAddOperator(key)) AddOperator(key); });
         }
 
         // ── State Properties ──────────────────────────────────────────
diff --git a/XplorePlane/Views/ImageProcessing/OperatorToolboxView.xaml b/XplorePlane/Views/ImageProcessing/OperatorToolboxView.xaml
index 9c5ff9d..fc69075 100644
--- a/XplorePlane/Views/ImageProcessing/OperatorToolboxView.xaml
+++ b/XplorePlane/Views/ImageProcessing/OperatorToolboxView.xaml
@@ -135,28 +135,77 @@
                                                         </Style.Triggers>
                                                     </Style>
                                                 </Border.Style>
-                                                <StackPanel Orientation="Horizontal">
-                                                    <Border Width="28"
-                                                            Height="28"
-                                                            Background="#EEF2FF"
-                                                            CornerRadius="4"
-                                                            Margin="0,0,8,0">
-                                                        <TextBlock Text="{Binding IconPath}"
-                                                                   HorizontalAlignment="Center"
-                                                                   VerticalAlignment="Center"
-                                                                   FontSize="14" />
-                                                    </Border>
-                                                    <StackPanel VerticalAlignment="Center">
-                                                        <TextBlock Text="{Binding DisplayName}"
-                                                                   FontFamily="Microsoft YaHei UI"
-                                                                   FontSize="11.5"
-                                                                   Foreground="#1c1c1b" />
-                                                        <TextBlock Text="{Binding Key}"
-                                                                   FontFamily="Consolas"
-                                                                   FontSize="9.5"
-                                                                   Foreground="#999" />
+                                                <Grid>
+                                                    <Grid.ColumnDefinitions>
+                                                        <ColumnDefinition Width="*" />
+                                                        <ColumnDefinition Width="Auto" />
+                                                    </Grid.ColumnDefinitions>
+                                                    <StackPanel Grid.Column="0" Orientation="Horizontal">
+                                                        <Border Width="28"
+                                                                Height="28"
+                                                                Background="#EEF2FF"
+                                                                CornerRadius="4"
+                                                                Margin="0,0,8,0">
+                                                            <TextBlock Text="{Binding IconPath}"
+                                                                       HorizontalAlignment="Center"
+                                                                       VerticalAlignment="Center"
+                                                                       FontSize="14" />
+                                                        </Border>
+                                                        <StackPanel VerticalAlignment="Center">
+                                                            <TextBlock Text="{Binding DisplayName}"
+                                                                       FontFamily="Microsoft YaHei UI"
+                                                                       FontSize="11.5"
+                                                                       Foreground="#1c1c1b" />
+                                                            <TextBlock Text="{Binding Key}"
+                                                                       FontFamily="Consolas"
+                                                                       FontSize="9.5"
+                                                                       Foreground="#999" />
+                                                        </StackPanel>
                                                     </StackPanel>
-                                                </StackPanel>
+                                                    <Button Grid.Column="1"
+                                                            Width="24"
+                                                            Height="24"
+                                                            Margin="6,0,0,0"
+                                                            VerticalAlignment="Center"
+                                                            Cursor="Hand"
+                                                            ToolTip="添加到流水线"
+                                                            Command="{Binding DataContext.AddOperatorCommand, RelativeSource={RelativeSource AncestorType=UserControl}}"
+                                                            CommandParameter="{Binding Key}">
+                                                        <Button.Style>
+                                                            <Style TargetType="Button">
+                                                                <Setter Property="Background" Value="Transparent" />
+                                                                <Setter Property="BorderThickness" Value="0" />
+                                                                <Setter Property="Padding" Value="0" />
+                                                                <Setter Property="Template">
+                                                                    <Setter.Value>
+                                                                        <ControlTemplate TargetType="Button">
+                                                                            <Border Background="{TemplateBinding Background}"
+                                                                                    CornerRadius="4"
+                                                                                    Padding="2">
+                                                                                <ContentPresenter HorizontalAlignment="Center"
+                                                                                                  VerticalAlignment="Center" />
+                                                                            </Border>
+                                                                            <ControlTemplate.Triggers>
+                                                                                <Trigger Property="IsMouseOver" Value="True">
+                                                                                    <Setter Property="Background" Value="#C8DCFF" />
+                                                                                </Trigger>
+                                                                                <Trigger Property="IsPressed" Value="True">
+                                                                                    <Setter Property="Background" Value="#A0C0F0" />
+                                                                                </Trigger>
+                                                                            </ControlTemplate.Triggers>
+                                                                        </ControlTemplate>
+                                                                    </Setter.Value>
+                                                                </Setter>
+                                                            </Style>
+                                                        </Button.Style>
+                                                        <TextBlock Text="+"
+                                                                   FontSize="16"
+                                                                   FontWeight="Bold"
+                                                                   Foreground="#5B9BD5"
+                                                                   VerticalAlignment="Center"
+                                                                   HorizontalAlignment="Center" />
+                                                    </Button>
+                                                </Grid>
                                             </Border>
                                         </DataTemplate>
                                     </ItemsControl.ItemTemplate>