diff --git a/src/Commands/AssumeUnchanged.cs b/src/Commands/AssumeUnchanged.cs
new file mode 100644
index 00000000..9a0af3d9
--- /dev/null
+++ b/src/Commands/AssumeUnchanged.cs
@@ -0,0 +1,60 @@
+using System.Collections.Generic;
+using System.Text.RegularExpressions;
+
+namespace SourceGit.Commands {
+    /// <summary>
+    ///     查看、添加或移除忽略变更文件
+    /// </summary>
+    public class AssumeUnchanged {
+        private string repo;
+
+        class ViewCommand : Command {
+            private static readonly Regex REG = new Regex(@"^(\w)\s+(.+)$");
+            private List<string> outs = new List<string>();
+
+            public ViewCommand(string repo) {
+                Cwd = repo;
+                Args = "ls-files -v";
+            }
+
+            public List<string> Result() {
+                Exec();
+                return outs;
+            }
+
+            public override void OnReadline(string line) {
+                var match = REG.Match(line);
+                if (!match.Success) return;
+
+                if (match.Groups[1].Value == "h") {
+                    outs.Add(match.Groups[2].Value);
+                }
+            }
+        }
+
+        class ModCommand : Command {
+            public ModCommand(string repo, string file, bool bAdd) {
+                var mode = bAdd ? "--assume-unchanged" : "--no-assume-unchanged";
+
+                Cwd = repo;
+                Args = $"update-index {mode} -- \"{file}\"";
+            }
+        }
+
+        public AssumeUnchanged(string repo) {
+            this.repo = repo;
+        }
+
+        public List<string> View() {
+            return new ViewCommand(repo).Result();
+        }
+
+        public void Add(string file) {
+            new ModCommand(repo, file, true).Exec();
+        }
+
+        public void Remove(string file) {
+            new ModCommand(repo, file, false).Exec();
+        }
+    }
+}
diff --git a/src/Resources/Icons.xaml b/src/Resources/Icons.xaml
index a338d3dc..0ff07d04 100644
--- a/src/Resources/Icons.xaml
+++ b/src/Resources/Icons.xaml
@@ -70,4 +70,6 @@
 
     <StreamGeometry x:Key="Icon.VSCode">M719 85 388 417l-209-165L87 299v427l92 47 210-164L720 939 939 850V171zM186 610V412l104 104zm526 55L514 512l198-153z</StreamGeometry>
     <StreamGeometry x:Key="Icon.Sort">M426.7 554.7v-85.3h341.3v85.3h-341.3m0 256v-85.3h170.7v85.3h-170.7m0-512V213.3h512v85.3H426.7M256 725.3h106.7L213.3 874.7 64 725.3H170.7V298.7H64L213.3 149.3 362.7 298.7H256v426.7z</StreamGeometry>
+    <StreamGeometry x:Key="Icon.Ignores">M854 170c-189-189-495-189-684 0s-189 495 0 684 495 189 684 0 187-495 0-684zM213 706c-89-137-74-325 48-444 122-122 307-137 444-48L213 706zm106 105 493-493c89 137 74 325-48 444-120 122-307 137-444 48z</StreamGeometry>
+    <StreamGeometry x:Key="Icon.Empty">M469 235V107h85v128h-85zm-162-94 85 85-60 60-85-85 60-60zm469 60-85 85-60-60 85-85 60 60zm-549 183A85 85 0 01302 341H722a85 85 0 0174 42l131 225A85 85 0 01939 652V832a85 85 0 01-85 85H171a85 85 0 01-85-85v-180a85 85 0 0112-43l131-225zM722 427H302l-100 171h255l10 29a59 59 0 002 5c2 4 5 9 9 14 8 9 18 17 34 17 16 0 26-7 34-17a72 72 0 0011-18l0-0 10-29h255l-100-171zM853 683H624a155 155 0 01-12 17C593 722 560 747 512 747c-48 0-81-25-99-47a155 155 0 01-12-17H171v149h683v-149z</StreamGeometry>
 </ResourceDictionary>
\ No newline at end of file
diff --git a/src/Resources/Locales/en_US.xaml b/src/Resources/Locales/en_US.xaml
index f5fc5d01..933f61d2 100644
--- a/src/Resources/Locales/en_US.xaml
+++ b/src/Resources/Locales/en_US.xaml
@@ -217,6 +217,7 @@
     <sys:String x:Key="Text.FileCM.DiscardMulti">Discard {0} files...</sys:String>
     <sys:String x:Key="Text.FileCM.StashMulti">Stash {0} files...</sys:String>
     <sys:String x:Key="Text.FileCM.SaveAsPatch">Save As Patch...</sys:String>
+    <sys:String x:Key="Text.FileCM.AssumeUnchanged">Assume unchaged</sys:String>
 
     <sys:String x:Key="Text.DeleteBranch">Confirm To Delete Branch</sys:String>
     <sys:String x:Key="Text.DeleteBranch.Branch">Branch :</sys:String>
@@ -394,6 +395,7 @@
 
     <sys:String x:Key="Text.WorkingCopy">Changes</sys:String>
     <sys:String x:Key="Text.WorkingCopy.Unstaged">UNSTAGED</sys:String>
+    <sys:String x:Key="Text.WorkingCopy.Unstaged.ViewAssumeUnchaged">VIEW ASSUME UNCHANGED</sys:String>
     <sys:String x:Key="Text.WorkingCopy.Unstaged.Stage">STAGE</sys:String>
     <sys:String x:Key="Text.WorkingCopy.Unstaged.StageAll">STAGE ALL</sys:String>
     <sys:String x:Key="Text.WorkingCopy.Staged">STAGED</sys:String>
@@ -477,6 +479,10 @@
     <sys:String x:Key="Text.Statistics.CommitterName">COMMITTER</sys:String>
     <sys:String x:Key="Text.Statistics.CommitAmount">COMMITS</sys:String>
 
+    <sys:String x:Key="Text.AssumeUnchanged">FILES ASSUME UNCHANGED</sys:String>
+    <sys:String x:Key="Text.AssumeUnchanged.Remove">REMOVE</sys:String>
+    <sys:String x:Key="Text.AssumeUnchanged.Empty">NO FILES ASSUMED AS UNCHANGED</sys:String>
+
     <sys:String x:Key="Text.Weekday.0">SUN</sys:String>
     <sys:String x:Key="Text.Weekday.1">MON</sys:String>
     <sys:String x:Key="Text.Weekday.2">TUE</sys:String>
diff --git a/src/Resources/Locales/zh_CN.xaml b/src/Resources/Locales/zh_CN.xaml
index d0999df0..fb46362b 100644
--- a/src/Resources/Locales/zh_CN.xaml
+++ b/src/Resources/Locales/zh_CN.xaml
@@ -216,6 +216,7 @@
     <sys:String x:Key="Text.FileCM.DiscardMulti">放弃 {0} 个文件的更改...</sys:String>
     <sys:String x:Key="Text.FileCM.StashMulti">贮藏选中的 {0} 个文件...</sys:String>
     <sys:String x:Key="Text.FileCM.SaveAsPatch">另存为补丁...</sys:String>
+    <sys:String x:Key="Text.FileCM.AssumeUnchanged">不跟踪此文件的更改</sys:String>
 
     <sys:String x:Key="Text.DeleteBranch">确定要删除此分支吗？</sys:String>
     <sys:String x:Key="Text.DeleteBranch.Branch">分支名 ：</sys:String>
@@ -393,6 +394,7 @@
 
     <sys:String x:Key="Text.WorkingCopy">本地更改</sys:String>
     <sys:String x:Key="Text.WorkingCopy.Unstaged">未暂存</sys:String>
+    <sys:String x:Key="Text.WorkingCopy.Unstaged.ViewAssumeUnchaged">查看忽略变更文件</sys:String>
     <sys:String x:Key="Text.WorkingCopy.Unstaged.Stage">暂存选中</sys:String>
     <sys:String x:Key="Text.WorkingCopy.Unstaged.StageAll">暂存所有</sys:String>
     <sys:String x:Key="Text.WorkingCopy.Staged">已暂存</sys:String>
@@ -476,6 +478,10 @@
     <sys:String x:Key="Text.Statistics.CommitterName">提交者</sys:String>
     <sys:String x:Key="Text.Statistics.CommitAmount">提交次数</sys:String>
 
+    <sys:String x:Key="Text.AssumeUnchanged">不跟踪更改的文件</sys:String>
+    <sys:String x:Key="Text.AssumeUnchanged.Remove">移除</sys:String>
+    <sys:String x:Key="Text.AssumeUnchanged.Empty">没有不跟踪更改的文件</sys:String>
+
     <sys:String x:Key="Text.Weekday.0">星期日</sys:String>
     <sys:String x:Key="Text.Weekday.1">星期一</sys:String>
     <sys:String x:Key="Text.Weekday.2">星期二</sys:String>
diff --git a/src/Views/AssumeUnchanged.xaml b/src/Views/AssumeUnchanged.xaml
new file mode 100644
index 00000000..01d5413f
--- /dev/null
+++ b/src/Views/AssumeUnchanged.xaml
@@ -0,0 +1,100 @@
+<controls:Window 
+    x:Class="SourceGit.Views.AssumeUnchanged"
+    x:Name="me"
+    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+    xmlns:controls="clr-namespace:SourceGit.Views.Controls"
+    mc:Ignorable="d"
+    WindowStartupLocation="CenterOwner"
+    Title="{DynamicResource Text.AssumeUnchanged}" 
+    Width="600" MinHeight="200" SizeToContent="Height"
+    ResizeMode="NoResize">
+    <Window.Resources>
+        <Style x:Key="Style.DataGridRow.Change" TargetType="{x:Type DataGridRow}" BasedOn="{StaticResource Style.DataGridRow}">
+            <EventSetter Event="RequestBringIntoView" Handler="OnRequestBringIntoView"/>
+        </Style>
+    </Window.Resources>
+    
+    <Grid>
+        <Grid.RowDefinitions>
+            <RowDefinition Height="28"/>
+            <RowDefinition Height="1"/>
+            <RowDefinition Height="*"/>
+        </Grid.RowDefinitions>
+
+        <!-- Title bar -->
+        <Grid Grid.Row="0" Background="{DynamicResource Brush.TitleBar}">
+            <Grid.ColumnDefinitions>
+                <ColumnDefinition Width="Auto"/>
+                <ColumnDefinition Width="Auto"/>
+                <ColumnDefinition Width="*"/>
+                <ColumnDefinition Width="Auto"/>
+            </Grid.ColumnDefinitions>
+
+            <!-- Icon -->
+            <Path Grid.Column="0" Margin="6,0" Width="16" Height="16" Data="{StaticResource Icon.Ignores}"/>
+
+            <!-- Title -->
+            <TextBlock Grid.Column="1" Text="{DynamicResource Text.AssumeUnchanged}"/>
+
+            <!-- Close -->
+            <controls:IconButton
+                Grid.Column="3"
+                Click="OnQuit"
+                Width="28"
+                IconSize="10" 
+                Icon="{StaticResource Icon.Close}" 
+                HoverBackground="Red" 
+                WindowChrome.IsHitTestVisibleInChrome="True"/>
+        </Grid>
+
+        <Rectangle 
+            Grid.Row="1"
+            Height="1"
+            HorizontalAlignment="Stretch"
+            Fill="{DynamicResource Brush.Border0}"/>
+
+        <DataGrid
+            Grid.Row="2"
+            x:Name="list"
+            Margin="8,4"
+            RowHeight="24"
+            SelectionMode="Extended"
+            SelectionUnit="FullRow"
+            Background="{DynamicResource Brush.Contents}"
+            ItemsSource="{Binding ElementName=me, Path=Files}"
+            RowStyle="{StaticResource Style.DataGridRow.Change}"
+            Visibility="Collapsed">
+            <DataGrid.Columns>
+                <DataGridTemplateColumn IsReadOnly="True" Width="*">
+                    <DataGridTemplateColumn.CellTemplate>
+                        <DataTemplate>
+                            <TextBlock Margin="8,0" Text="{Binding .}" FontSize="14"/>
+                        </DataTemplate>
+                    </DataGridTemplateColumn.CellTemplate>
+                </DataGridTemplateColumn>
+
+                <DataGridTemplateColumn Width="32">
+                    <DataGridTemplateColumn.CellTemplate>
+                        <DataTemplate>
+                            <controls:IconButton
+                                Grid.Column="6"
+                                Click="Remove"
+                                Width="12" Height="12"
+                                Margin="4,0"
+                                Icon="{StaticResource Icon.Close}"
+                                ToolTip="{DynamicResource Text.AssumeUnchanged.Remove}"/>
+                        </DataTemplate>
+                    </DataGridTemplateColumn.CellTemplate>
+                </DataGridTemplateColumn>
+            </DataGrid.Columns>
+        </DataGrid>
+
+        <StackPanel Grid.Row="2" x:Name="mask" Orientation="Vertical" HorizontalAlignment="Center" VerticalAlignment="Center" Visibility="Collapsed">
+            <Path Width="48" Height="48" Margin="0,32,0,8" Data="{StaticResource Icon.Empty}" Fill="{DynamicResource Brush.FG2}"/>
+            <TextBlock Margin="0,0,0,32" Text="{DynamicResource Text.AssumeUnchanged.Empty}" Foreground="{DynamicResource Brush.FG2}"/>
+        </StackPanel>
+    </Grid>
+</controls:Window>
diff --git a/src/Views/AssumeUnchanged.xaml.cs b/src/Views/AssumeUnchanged.xaml.cs
new file mode 100644
index 00000000..1336f0bb
--- /dev/null
+++ b/src/Views/AssumeUnchanged.xaml.cs
@@ -0,0 +1,64 @@
+using System.Collections.ObjectModel;
+using System.Threading.Tasks;
+using System.Windows;
+using System.Windows.Controls;
+
+namespace SourceGit.Views {
+    /// <summary>
+    ///     管理不跟踪变更的文件
+    /// </summary>
+    public partial class AssumeUnchanged : Controls.Window {
+        private string repo = null;
+
+        public ObservableCollection<string> Files { get; set; }
+
+        public AssumeUnchanged(string repo) {
+            this.repo = repo;
+            this.Files = new ObservableCollection<string>();
+
+            InitializeComponent();
+
+            Task.Run(() => {
+                var unchanged = new Commands.AssumeUnchanged(repo).View();
+                Dispatcher.Invoke(() => {
+                    if (unchanged.Count > 0) {
+                        foreach (var file in unchanged) Files.Add(file);
+
+                        mask.Visibility = Visibility.Collapsed;
+                        list.Visibility = Visibility.Visible;
+                        list.ItemsSource = Files;
+                    } else {
+                        list.Visibility = Visibility.Collapsed;
+                        mask.Visibility = Visibility.Visible;
+                    }
+                });
+            });
+        }
+
+        private void OnQuit(object sender, RoutedEventArgs e) {
+            Close();
+        }
+
+        private void OnRequestBringIntoView(object sender, RequestBringIntoViewEventArgs e) {
+            e.Handled = true;
+        }
+
+        private void Remove(object sender, RoutedEventArgs e) {
+            var btn = sender as Button;
+            if (btn == null) return;
+
+            var file = btn.DataContext as string;
+            if (file == null) return;
+
+            new Commands.AssumeUnchanged(repo).Remove(file);
+            Files.Remove(file);
+
+            if (Files.Count == 0) {
+                list.Visibility = Visibility.Collapsed;
+                mask.Visibility = Visibility.Visible;
+            }
+
+            e.Handled = true;
+        }
+    }
+}
diff --git a/src/Views/Widgets/WorkingCopy.xaml b/src/Views/Widgets/WorkingCopy.xaml
index d53bfe1f..70bc5407 100644
--- a/src/Views/Widgets/WorkingCopy.xaml
+++ b/src/Views/Widgets/WorkingCopy.xaml
@@ -41,6 +41,7 @@
                         <ColumnDefinition Width="Auto"/>
                         <ColumnDefinition Width="Auto"/>
                         <ColumnDefinition Width="Auto"/>
+                        <ColumnDefinition Width="Auto"/>
                     </Grid.ColumnDefinitions>
 
                     <controls:ChangeDisplaySwitcher
@@ -61,8 +62,15 @@
                         x:Name="iconStaging"
                         IsAnimating="{Binding ElementName=unstagedContainer, Path=IsStaging}"
                         Visibility="{Binding ElementName=unstagedContainer, Path=IsStaging, Converter={StaticResource BoolToCollapsed}}"/>
-                    <ToggleButton
+                    <controls:IconButton
                         Grid.Column="4"
+                        Click="ViewAssumeUnchanged"
+                        Width="14" Height="14"
+                        Margin="4,0"
+                        Icon="{StaticResource Icon.Ignores}"
+                        ToolTip="{DynamicResource Text.WorkingCopy.Unstaged.ViewAssumeUnchaged}"/>
+                    <ToggleButton
+                        Grid.Column="5"
                         Width="14" Height="14"
                         Margin="4,0"
                         Style="{StaticResource Style.ToggleButton.Eye}"
@@ -70,14 +78,14 @@
                         IsChecked="{Binding Source={x:Static models:Preference.Instance}, Path=Git.IncludeUntrackedInWC, Mode=TwoWay}"
                         Checked="ToggleIncludeUntracked" Unchecked="ToggleIncludeUntracked"/>
                     <controls:IconButton
-                        Grid.Column="5"
+                        Grid.Column="6"
                         Click="StageSelected"
                         Width="14" Height="14"
                         Margin="4,0"
                         Icon="{StaticResource Icon.Down}"
                         ToolTip="{DynamicResource Text.WorkingCopy.Unstaged.Stage}"/>
                     <controls:IconButton
-                        Grid.Column="6"
+                        Grid.Column="7"
                         Click="StageAll"
                         Width="14" Height="14"
                         Margin="4,0"
diff --git a/src/Views/Widgets/WorkingCopy.xaml.cs b/src/Views/Widgets/WorkingCopy.xaml.cs
index 17483ab4..b95f210b 100644
--- a/src/Views/Widgets/WorkingCopy.xaml.cs
+++ b/src/Views/Widgets/WorkingCopy.xaml.cs
@@ -98,6 +98,12 @@ namespace SourceGit.Views.Widgets {
         }
 
         #region STAGE_UNSTAGE
+        private void ViewAssumeUnchanged(object sender, RoutedEventArgs e) {
+            var dialog = new AssumeUnchanged(repo.Path);
+            dialog.Owner = App.Current.MainWindow;
+            dialog.ShowDialog();
+        }
+
         private void StageSelected(object sender, RoutedEventArgs e) {
             unstagedContainer.StageSelected();
         }
diff --git a/src/Views/Widgets/WorkingCopyChanges.xaml.cs b/src/Views/Widgets/WorkingCopyChanges.xaml.cs
index bb3d35ff..f4c97d1f 100644
--- a/src/Views/Widgets/WorkingCopyChanges.xaml.cs
+++ b/src/Views/Widgets/WorkingCopyChanges.xaml.cs
@@ -1,4 +1,5 @@
 using Microsoft.Win32;
+using SourceGit.Models;
 using System;
 using System.Collections.Generic;
 using System.Collections.ObjectModel;
@@ -484,6 +485,14 @@ namespace SourceGit.Views.Widgets {
                 menu.Items.Add(patch);
                 menu.Items.Add(new Separator());
                 if (node.Change != null) {
+                    var assumeUnchanged = new MenuItem();
+                    assumeUnchanged.Header = App.Text("FileCM.AssumeUnchanged");
+                    assumeUnchanged.Click += (o, e) => {
+                        new Commands.AssumeUnchanged(repo).Add(node.Path);
+                        e.Handled = true;
+                    };
+                    menu.Items.Add(assumeUnchanged);
+
                     var history = new MenuItem();
                     history.Header = App.Text("FileHistory");
                     history.Click += (o, e) => {
@@ -622,6 +631,13 @@ namespace SourceGit.Views.Widgets {
                     e.Handled = true;
                 };
 
+                var assumeUnchanged = new MenuItem();
+                assumeUnchanged.Header = App.Text("FileCM.AssumeUnchanged");
+                assumeUnchanged.Click += (o, e) => {
+                    new Commands.AssumeUnchanged(repo).Add(change.Path);
+                    e.Handled = true;
+                };
+
                 menu.Items.Add(explore);
                 menu.Items.Add(new Separator());
                 menu.Items.Add(stage);
@@ -629,6 +645,7 @@ namespace SourceGit.Views.Widgets {
                 menu.Items.Add(stash);
                 menu.Items.Add(patch);
                 menu.Items.Add(new Separator());
+                menu.Items.Add(assumeUnchanged);
                 menu.Items.Add(history);
                 menu.Items.Add(new Separator());
                 menu.Items.Add(copyPath);