diff --git a/src/Avalonia/HandyControlDemo_Avalonia/Data/DemoInfo.json b/src/Avalonia/HandyControlDemo_Avalonia/Data/DemoInfo.json
index 2dfd239b..6644a740 100644
--- a/src/Avalonia/HandyControlDemo_Avalonia/Data/DemoInfo.json
+++ b/src/Avalonia/HandyControlDemo_Avalonia/Data/DemoInfo.json
@@ -55,7 +55,8 @@
       [ "ProgressBar", "ProgressBarDemo", "Brush.ProgressBar", "", "Feedback" ],
       [ "Rate", "RateDemo", "Brush.Favorite", "", "Feedback" ],
       [ "Loading", "LoadingDemo", "Brush.Loading", "", "Feedback" ],
-      [ "Tag", "TagDemo", "Brush.Tag", "", "DataDisplay" ]
+      [ "Tag", "TagDemo", "Brush.Tag", "", "DataDisplay" ],
+      [ "Badge", "BadgeDemo", "Brush.CheckDot", "", "DataDisplay" ]
     ]
   }
 ]
diff --git a/src/Avalonia/HandyControlDemo_Avalonia/UserControl/Controls/BadgeDemo.axaml b/src/Avalonia/HandyControlDemo_Avalonia/UserControl/Controls/BadgeDemo.axaml
new file mode 100644
index 00000000..f690f978
--- /dev/null
+++ b/src/Avalonia/HandyControlDemo_Avalonia/UserControl/Controls/BadgeDemo.axaml
@@ -0,0 +1,49 @@
+<UserControl xmlns="https://github.com/avaloniaui"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:hc="https://handyorg.github.io/handycontrol"
+             x:Class="HandyControlDemo.UserControl.BadgeDemo"
+             Background="{DynamicResource RegionBrush}">
+    <ScrollViewer>
+        <hc:UniformSpacingPanel Margin="32"
+                                Spacing="32"
+                                ChildWrapping="Wrap"
+                                VerticalAlignment="Center"
+                                HorizontalAlignment="Center">
+            <hc:Badge Text="New"
+                      BadgeMargin="0,-14,-20,0"
+                      Height="30">
+                <Button Content="Comment" />
+            </hc:Badge>
+            <hc:Badge Text="New"
+                      BadgeMargin="0,-14,-20,0"
+                      Height="30"
+                      Theme="{StaticResource BadgeDanger}">
+                <Button Content="Comment" />
+            </hc:Badge>
+            <hc:Badge Name="CountBadge"
+                      Value="0"
+                      BadgeMargin="0,-14,-10,0"
+                      Height="30"
+                      Theme="{StaticResource BadgePrimary}">
+                <Button Name="CountButton"
+                        Content="Click to Count" />
+            </hc:Badge>
+            <hc:Badge Value="100"
+                      BadgeMargin="0,-14,-20,0"
+                      Height="30"
+                      Theme="{StaticResource BadgeDanger}">
+                <Button Content="Comment" />
+            </hc:Badge>
+            <hc:Badge Status="Dot"
+                      Height="30"
+                      Theme="{StaticResource BadgeDanger}">
+                <Button Content="Reply" />
+            </hc:Badge>
+            <hc:Badge Status="Processing"
+                      Height="30"
+                      Theme="{StaticResource BadgeDanger}">
+                <Button Content="Reply" />
+            </hc:Badge>
+        </hc:UniformSpacingPanel>
+    </ScrollViewer>
+</UserControl>
diff --git a/src/Avalonia/HandyControlDemo_Avalonia/UserControl/Controls/BadgeDemo.axaml.cs b/src/Avalonia/HandyControlDemo_Avalonia/UserControl/Controls/BadgeDemo.axaml.cs
new file mode 100644
index 00000000..da73c343
--- /dev/null
+++ b/src/Avalonia/HandyControlDemo_Avalonia/UserControl/Controls/BadgeDemo.axaml.cs
@@ -0,0 +1,20 @@
+using Avalonia.Controls;
+using Avalonia.Interactivity;
+using HandyControl.Controls;
+
+namespace HandyControlDemo.UserControl;
+
+public partial class BadgeDemo : Avalonia.Controls.UserControl
+{
+    public BadgeDemo()
+    {
+        InitializeComponent();
+
+        var badge = this.FindControl<Badge>("CountBadge");
+        var button = this.FindControl<Button>("CountButton");
+        if (button != null && badge != null)
+        {
+            button.Click += (_, _) => badge.Value += 1;
+        }
+    }
+}
diff --git a/src/Avalonia/HandyControl_Avalonia/Controls/Other/Badge.cs b/src/Avalonia/HandyControl_Avalonia/Controls/Other/Badge.cs
new file mode 100644
index 00000000..69d44763
--- /dev/null
+++ b/src/Avalonia/HandyControl_Avalonia/Controls/Other/Badge.cs
@@ -0,0 +1,115 @@
+using System;
+using Avalonia;
+using Avalonia.Controls;
+using Avalonia.Interactivity;
+using HandyControl.Data;
+
+namespace HandyControl.Controls;
+
+/// <summary>
+///     标记
+/// </summary>
+public class Badge : ContentControl
+{
+    private int? _originalValue;
+
+    public static readonly RoutedEvent<FunctionEventArgs<int>> ValueChangedEvent =
+        RoutedEvent.Register<Badge, FunctionEventArgs<int>>(nameof(ValueChanged), RoutingStrategies.Bubble);
+
+    public event EventHandler<FunctionEventArgs<int>> ValueChanged
+    {
+        add => AddHandler(ValueChangedEvent, value);
+        remove => RemoveHandler(ValueChangedEvent, value);
+    }
+
+    public static readonly StyledProperty<string?> TextProperty =
+        AvaloniaProperty.Register<Badge, string?>(nameof(Text), "0");
+
+    public string? Text
+    {
+        get => GetValue(TextProperty);
+        set => SetValue(TextProperty, value);
+    }
+
+    public static readonly StyledProperty<int> ValueProperty =
+        AvaloniaProperty.Register<Badge, int>(nameof(Value));
+
+    public int Value
+    {
+        get => GetValue(ValueProperty);
+        set => SetValue(ValueProperty, value);
+    }
+
+    public static readonly StyledProperty<BadgeStatus> StatusProperty =
+        AvaloniaProperty.Register<Badge, BadgeStatus>(nameof(Status));
+
+    public BadgeStatus Status
+    {
+        get => GetValue(StatusProperty);
+        set => SetValue(StatusProperty, value);
+    }
+
+    public static readonly StyledProperty<int> MaximumProperty =
+        AvaloniaProperty.Register<Badge, int>(nameof(Maximum), 99);
+
+    public int Maximum
+    {
+        get => GetValue(MaximumProperty);
+        set => SetValue(MaximumProperty, value);
+    }
+
+    public static readonly StyledProperty<Thickness> BadgeMarginProperty =
+        AvaloniaProperty.Register<Badge, Thickness>(nameof(BadgeMargin));
+
+    public Thickness BadgeMargin
+    {
+        get => GetValue(BadgeMarginProperty);
+        set => SetValue(BadgeMarginProperty, value);
+    }
+
+    public static readonly StyledProperty<bool> ShowBadgeProperty =
+        AvaloniaProperty.Register<Badge, bool>(nameof(ShowBadge), true);
+
+    public bool ShowBadge
+    {
+        get => GetValue(ShowBadgeProperty);
+        set => SetValue(ShowBadgeProperty, value);
+    }
+
+    static Badge()
+    {
+        ValueProperty.Changed.AddClassHandler<Badge>((badge, e) => badge.OnValueChanged(e));
+        MaximumProperty.Changed.AddClassHandler<Badge>((badge, _) => badge.UpdateText(badge.Value));
+    }
+
+    private void OnValueChanged(AvaloniaPropertyChangedEventArgs e)
+    {
+        var v = e.GetNewValue<int>();
+        UpdateText(v);
+
+        if (IsLoaded)
+        {
+            RaiseEvent(new FunctionEventArgs<int>(ValueChangedEvent, this) { Info = v });
+        }
+        else
+        {
+            _originalValue = v;
+        }
+    }
+
+    private void UpdateText(int v)
+    {
+        SetCurrentValue(TextProperty, v <= Maximum ? v.ToString() : $"{Maximum}+");
+    }
+
+    protected override void OnApplyTemplate(Avalonia.Controls.Primitives.TemplateAppliedEventArgs e)
+    {
+        base.OnApplyTemplate(e);
+
+        if (_originalValue != null)
+        {
+            RaiseEvent(new FunctionEventArgs<int>(ValueChangedEvent, this) { Info = _originalValue.Value });
+            _originalValue = null;
+        }
+    }
+}
diff --git a/src/Avalonia/HandyControl_Avalonia/Data/Enum/BadgeStatus.cs b/src/Avalonia/HandyControl_Avalonia/Data/Enum/BadgeStatus.cs
new file mode 100644
index 00000000..c4e0ebb1
--- /dev/null
+++ b/src/Avalonia/HandyControl_Avalonia/Data/Enum/BadgeStatus.cs
@@ -0,0 +1,8 @@
+namespace HandyControl.Data;
+
+public enum BadgeStatus
+{
+    Text,
+    Dot,
+    Processing
+}
diff --git a/src/Avalonia/HandyControl_Avalonia/Themes/Styles/Badge.axaml b/src/Avalonia/HandyControl_Avalonia/Themes/Styles/Badge.axaml
new file mode 100644
index 00000000..2e0b239b
--- /dev/null
+++ b/src/Avalonia/HandyControl_Avalonia/Themes/Styles/Badge.axaml
@@ -0,0 +1,188 @@
+<ResourceDictionary xmlns="https://github.com/avaloniaui"
+                    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+                    x:ClassModifier="internal"
+                    xmlns:hc="clr-namespace:HandyControl.Controls">
+
+    <ControlTheme x:Key="BadgeBaseStyle"
+                  TargetType="hc:Badge">
+        <Setter Property="Focusable"
+                Value="False" />
+        <Setter Property="ClipToBounds"
+                Value="False" />
+        <Setter Property="Background"
+                Value="{DynamicResource SecondaryRegionBrush}" />
+        <Setter Property="Foreground"
+                Value="{DynamicResource TextIconBrush}" />
+        <Setter Property="BorderThickness"
+                Value="1" />
+        <Setter Property="BorderBrush"
+                Value="{DynamicResource RegionBrush}" />
+        <Setter Property="Padding"
+                Value="6,2" />
+        <Setter Property="HorizontalContentAlignment"
+                Value="Right" />
+        <Setter Property="VerticalContentAlignment"
+                Value="Top" />
+        <Setter Property="BadgeMargin"
+                Value="0,-10,-10,0" />
+
+        <!-- Default: Text template -->
+        <Setter Property="Template">
+            <ControlTemplate TargetType="hc:Badge">
+                <Panel>
+                    <ContentPresenter Content="{TemplateBinding Content}"
+                                      ContentTemplate="{TemplateBinding ContentTemplate}" />
+                    <Border Name="PART_Badge"
+                            IsVisible="{TemplateBinding ShowBadge}"
+                            RenderTransformOrigin="50%,50%"
+                            Theme="{StaticResource BorderCircular}"
+                            Margin="{TemplateBinding BadgeMargin}"
+                            HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}"
+                            VerticalAlignment="{TemplateBinding VerticalContentAlignment}"
+                            Background="{TemplateBinding Background}"
+                            BorderBrush="{TemplateBinding BorderBrush}"
+                            BorderThickness="{TemplateBinding BorderThickness}">
+                        <Border.RenderTransform>
+                            <ScaleTransform />
+                        </Border.RenderTransform>
+                        <ContentPresenter Content="{TemplateBinding Text}"
+                                          Margin="{TemplateBinding Padding}" />
+                    </Border>
+                </Panel>
+            </ControlTemplate>
+        </Setter>
+
+        <!-- Dot template -->
+        <Style Selector="^[Status=Dot]">
+            <Setter Property="BorderBrush"
+                    Value="{DynamicResource BorderBrush}" />
+            <Setter Property="BadgeMargin"
+                    Value="0,-5,-5,0" />
+            <Setter Property="Template">
+                <ControlTemplate TargetType="hc:Badge">
+                    <Panel>
+                        <ContentPresenter Content="{TemplateBinding Content}"
+                                          ContentTemplate="{TemplateBinding ContentTemplate}" />
+                        <Border IsVisible="{TemplateBinding ShowBadge}"
+                                Margin="{TemplateBinding BadgeMargin}"
+                                Width="10"
+                                Height="10"
+                                CornerRadius="5"
+                                HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}"
+                                VerticalAlignment="{TemplateBinding VerticalContentAlignment}"
+                                Background="{TemplateBinding Background}"
+                                BorderBrush="{TemplateBinding BorderBrush}"
+                                BorderThickness="{TemplateBinding BorderThickness}" />
+                    </Panel>
+                </ControlTemplate>
+            </Setter>
+        </Style>
+
+        <!-- Processing template -->
+        <Style Selector="^[Status=Processing]">
+            <Setter Property="BorderBrush"
+                    Value="{DynamicResource BorderBrush}" />
+            <Setter Property="BadgeMargin"
+                    Value="0,-5,-5,0" />
+            <Setter Property="Template">
+                <ControlTemplate TargetType="hc:Badge">
+                    <Panel>
+                        <ContentPresenter Content="{TemplateBinding Content}"
+                                          ContentTemplate="{TemplateBinding ContentTemplate}" />
+                        <Ellipse Name="PART_Pulse"
+                                 IsVisible="{TemplateBinding ShowBadge}"
+                                 Width="10"
+                                 Height="10"
+                                 Fill="{TemplateBinding Background}"
+                                 RenderTransformOrigin="50%,50%"
+                                 Margin="{TemplateBinding BadgeMargin}"
+                                 HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}"
+                                 VerticalAlignment="{TemplateBinding VerticalContentAlignment}">
+                            <Ellipse.RenderTransform>
+                                <ScaleTransform />
+                            </Ellipse.RenderTransform>
+                        </Ellipse>
+                        <Border IsVisible="{TemplateBinding ShowBadge}"
+                                Margin="{TemplateBinding BadgeMargin}"
+                                Width="10"
+                                Height="10"
+                                CornerRadius="5"
+                                HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}"
+                                VerticalAlignment="{TemplateBinding VerticalContentAlignment}"
+                                Background="{TemplateBinding Background}"
+                                BorderBrush="{TemplateBinding BorderBrush}"
+                                BorderThickness="{TemplateBinding BorderThickness}" />
+                    </Panel>
+                </ControlTemplate>
+            </Setter>
+        </Style>
+
+        <Style Selector="^[Status=Processing] /template/ Ellipse#PART_Pulse">
+            <Style.Animations>
+                <Animation IterationCount="Infinite"
+                           Easing="SineEaseOut"
+                           Duration="0:0:1">
+                    <KeyFrame Cue="0%">
+                        <Setter Property="ScaleTransform.ScaleX"
+                                Value="1" />
+                        <Setter Property="ScaleTransform.ScaleY"
+                                Value="1" />
+                        <Setter Property="Opacity"
+                                Value="1" />
+                    </KeyFrame>
+                    <KeyFrame Cue="100%">
+                        <Setter Property="ScaleTransform.ScaleX"
+                                Value="2" />
+                        <Setter Property="ScaleTransform.ScaleY"
+                                Value="2" />
+                        <Setter Property="Opacity"
+                                Value="0" />
+                    </KeyFrame>
+                </Animation>
+            </Style.Animations>
+        </Style>
+    </ControlTheme>
+
+    <ControlTheme x:Key="{x:Type hc:Badge}"
+                  BasedOn="{StaticResource BadgeBaseStyle}"
+                  TargetType="hc:Badge">
+        <Setter Property="Foreground"
+                Value="{DynamicResource PrimaryTextBrush}" />
+    </ControlTheme>
+
+    <ControlTheme x:Key="BadgePrimary"
+                  BasedOn="{StaticResource BadgeBaseStyle}"
+                  TargetType="hc:Badge">
+        <Setter Property="Background"
+                Value="{DynamicResource PrimaryBrush}" />
+    </ControlTheme>
+
+    <ControlTheme x:Key="BadgeSuccess"
+                  BasedOn="{StaticResource BadgeBaseStyle}"
+                  TargetType="hc:Badge">
+        <Setter Property="Background"
+                Value="{DynamicResource SuccessBrush}" />
+    </ControlTheme>
+
+    <ControlTheme x:Key="BadgeInfo"
+                  BasedOn="{StaticResource BadgeBaseStyle}"
+                  TargetType="hc:Badge">
+        <Setter Property="Background"
+                Value="{DynamicResource InfoBrush}" />
+    </ControlTheme>
+
+    <ControlTheme x:Key="BadgeWarning"
+                  BasedOn="{StaticResource BadgeBaseStyle}"
+                  TargetType="hc:Badge">
+        <Setter Property="Background"
+                Value="{DynamicResource WarningBrush}" />
+    </ControlTheme>
+
+    <ControlTheme x:Key="BadgeDanger"
+                  BasedOn="{StaticResource BadgeBaseStyle}"
+                  TargetType="hc:Badge">
+        <Setter Property="Background"
+                Value="{DynamicResource DangerBrush}" />
+    </ControlTheme>
+
+</ResourceDictionary>
diff --git a/src/Avalonia/HandyControl_Avalonia/Themes/Styles/MergedStyles.axaml b/src/Avalonia/HandyControl_Avalonia/Themes/Styles/MergedStyles.axaml
index 920c5925..5ef7783b 100644
--- a/src/Avalonia/HandyControl_Avalonia/Themes/Styles/MergedStyles.axaml
+++ b/src/Avalonia/HandyControl_Avalonia/Themes/Styles/MergedStyles.axaml
@@ -71,6 +71,7 @@
                 <MergeResourceInclude Source="avares://HandyControl/Themes/Styles/ButtonGroup.axaml" />
                 <MergeResourceInclude Source="avares://HandyControl/Themes/Styles/Gravatar.axaml" />
                 <MergeResourceInclude Source="avares://HandyControl/Themes/Styles/Tag.axaml" />
+                <MergeResourceInclude Source="avares://HandyControl/Themes/Styles/Badge.axaml" />
             </ResourceDictionary.MergedDictionaries>
         </ResourceDictionary>
     </Styles.Resources>