diff --git a/AmatsukazeGUI/ViewModels/SummaryItemViewModel.cs b/AmatsukazeGUI/ViewModels/SummaryItemViewModel.cs
index 941da78..90413b9 100644
--- a/AmatsukazeGUI/ViewModels/SummaryItemViewModel.cs
+++ b/AmatsukazeGUI/ViewModels/SummaryItemViewModel.cs
@@ -13,6 +13,8 @@
 
 using Amatsukaze.Models;
 using System.Windows.Media;
+using Amatsukaze.Server;
+using System.Collections;
 
 namespace Amatsukaze.ViewModels
 {
@@ -138,5 +140,30 @@ public void ToggleSuspend()
         }
         #endregion
 
+        #region CancelCommand
+        private ListenerCommand<IEnumerable> _CancelCommand;
+
+        public ListenerCommand<IEnumerable> CancelCommand
+        {
+            get
+            {
+                if (_CancelCommand == null)
+                {
+                    _CancelCommand = new ListenerCommand<IEnumerable>(Cancel);
+                }
+                return _CancelCommand;
+            }
+        }
+
+        public async void Cancel(IEnumerable selectedItems)
+        {
+            await Model.Server?.ChangeItem(new ChangeItemData()
+            {
+                ItemId = -1,
+                workerId = Data.Id - 1,
+                ChangeType = ChangeItemType.Cancel
+            });
+        }
+        #endregion
     }
 }
diff --git a/AmatsukazeGUI/Views/SummaryItem.xaml b/AmatsukazeGUI/Views/SummaryItem.xaml
index 4e9a43f..f157f7f 100644
--- a/AmatsukazeGUI/Views/SummaryItem.xaml
+++ b/AmatsukazeGUI/Views/SummaryItem.xaml
@@ -66,6 +66,11 @@
                         GPU:<Run Text="{Binding Data.GPU, Mode=OneWay}"/>@<Run Text="{Binding Data.GpuIndex, Mode=OneWay}"/>
                 </TextBlock>
                 <TextBlock Text="{Binding Data.LastLine, Mode=OneWay}" Foreground="{Binding ForeColor, Mode=OneWay}" VerticalAlignment="Center"/>
+                <DockPanel.ContextMenu>
+                    <ContextMenu x:Name="queueMenu">
+                        <MenuItem Header="キャンセル" Command="{Binding CancelCommand}" />
+                    </ContextMenu>
+                </DockPanel.ContextMenu>
             </DockPanel>
         </Button>
         <Button Width="100" HorizontalAlignment="Right" Command="{Binding ToggleSuspendCommand}">
diff --git a/AmatsukazeServer/Server/EncodeServer.cs b/AmatsukazeServer/Server/EncodeServer.cs
index 9ca62f9..569ebbc 100644
--- a/AmatsukazeServer/Server/EncodeServer.cs
+++ b/AmatsukazeServer/Server/EncodeServer.cs
@@ -2773,8 +2773,22 @@ internal QueueItem[] GetQueueItems(string srcPath)
             return queueManager.Queue.Where(s => s.SrcPath == srcPath).ToArray();
         }
 
+        int getItemIdFromWorkerId(int workerId)
+        {
+            var workers = workerPool.Workers.ToArray();
+            return (0 <= workerId && workerId < workers.Length) ? ((TranscodeWorker)workers[workerId]).GetItemId() : -1;
+        }
+
         public Task ChangeItem(ChangeItemData data)
         {
+            if (data.ItemId < 0)
+            {
+                data.ItemId = getItemIdFromWorkerId(data.workerId);
+                if (data.ItemId < 0)
+                {
+                    return Task.FromResult(0);
+                }
+            }
             return queueManager.ChangeItem(data);
         }
 #endregion
diff --git a/AmatsukazeServer/Server/EncodeServerData.cs b/AmatsukazeServer/Server/EncodeServerData.cs
index fd17c69..f092b8f 100644
--- a/AmatsukazeServer/Server/EncodeServerData.cs
+++ b/AmatsukazeServer/Server/EncodeServerData.cs
@@ -810,6 +810,8 @@ public class ChangeItemData
         [DataMember]
         public int ItemId { get; set; }
         [DataMember]
+        public int workerId { get; set; }
+        [DataMember]
         public ChangeItemType ChangeType { get; set; }
         [DataMember]
         public int Priority { get; set; }
diff --git a/AmatsukazeServer/Server/TranscodeWorker.cs b/AmatsukazeServer/Server/TranscodeWorker.cs
index ab98b23..d90be78 100644
--- a/AmatsukazeServer/Server/TranscodeWorker.cs
+++ b/AmatsukazeServer/Server/TranscodeWorker.cs
@@ -41,6 +41,11 @@ internal class TranscodeWorker : ConsoleTextBase, IScheduleWorker
 
         private List<Task> waitList;
 
+        public int GetItemId()
+        {
+            return (item != null) ? item.Id : -1;
+        }
+
         public TranscodeWorker(int id, EncodeServer server)
         {
             this.Id = id;