diff --git a/TuneLab/GUI/UpdateDialog.axaml b/TuneLab/GUI/UpdateDialog.axaml
new file mode 100644
index 0000000..d922d65
--- /dev/null
+++ b/TuneLab/GUI/UpdateDialog.axaml
@@ -0,0 +1,55 @@
+<Window xmlns="https://github.com/avaloniaui"
+        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:md="https://github.com/whistyun/Markdown.Avalonia"
+        mc:Ignorable="d" d:DesignWidth="432" d:DesignHeight="604"
+        x:Class="TuneLab.GUI.UpdateDialog"
+        Title="TuneLab"
+		Width="432"
+		Height="604"
+		ExtendClientAreaChromeHints="NoChrome"
+		ExtendClientAreaTitleBarHeightHint="40"
+		ExtendClientAreaToDecorationsHint="True">
+	<Window.Styles>
+		<Style Selector="TitleBar">
+			<Setter Property="Background" Value="DarkGray"/>
+			<Setter Property="Foreground" Value="White"/>
+		</Style>
+		<Style Selector="Window">
+			<Setter Property="CornerRadius" Value="12"/>
+		</Style>
+	</Window.Styles>
+
+	<DockPanel Margin="0">
+		<Grid DockPanel.Dock="Top" x:Name="TitleBar" Height="40">
+			<Grid.ColumnDefinitions>
+				<ColumnDefinition Width="*" />
+			</Grid.ColumnDefinitions>
+
+			<StackPanel Grid.Column="1" VerticalAlignment="Center" HorizontalAlignment="Center" Orientation="Horizontal" IsHitTestVisible="False">
+				<Label x:Name="TitleLabel" Content="Update" FontWeight="Bold" FontSize="14" VerticalAlignment="Center" HorizontalAlignment="Center" Foreground="White" />
+			</StackPanel>
+		</Grid>
+
+		<ContentControl x:Name="Content">
+			<Grid Margin="0" x:Name="ContentGrid">
+				<Grid.RowDefinitions>
+					<RowDefinition MinHeight="40" />
+					<RowDefinition MinHeight="452" />
+					<RowDefinition Height="56" />
+				</Grid.RowDefinitions>
+
+				<StackPanel Grid.Row="0" Orientation="Vertical" Margin="12,0" VerticalAlignment="Center" x:Name="MessageStackPanel">
+					<SelectableTextBlock x:Name="MessageTextBlock" Text="This is a modal window." Foreground="White" TextWrapping="Wrap" TextAlignment="Start" FontSize="14" Padding="0" Margin="0" />
+				</StackPanel>
+				
+				<StackPanel Grid.Row="1" Orientation="Vertical" Margin="12,0" HorizontalAlignment="Center" VerticalAlignment="Center" x:Name="MarkDownStackPanel">
+					<md:MarkdownScrollViewer x:Name="MarkDownScrollViewer" />
+				</StackPanel>
+
+				<Grid Grid.Row="2" x:Name="ButtonsPanel" Margin="0, 0, 0, 16"/>
+			</Grid>
+		</ContentControl>
+	</DockPanel>
+</Window>
diff --git a/TuneLab/GUI/UpdateDialog.axaml.cs b/TuneLab/GUI/UpdateDialog.axaml.cs
new file mode 100644
index 0000000..d2f46ff
--- /dev/null
+++ b/TuneLab/GUI/UpdateDialog.axaml.cs
@@ -0,0 +1,78 @@
+using Avalonia;
+using Avalonia.Controls;
+using Avalonia.Media;
+using System;
+using TuneLab.Utils;
+using Button = TuneLab.GUI.Components.Button;
+using Markdown.Avalonia;
+using TuneLab.I18N;
+
+namespace TuneLab.GUI;
+
+internal partial class UpdateDialog : Window
+{
+    public enum ButtonType
+    {
+        Primary,
+        Normal
+    }
+
+    private Grid titleBar;
+    private Label titleLabel;
+    private SelectableTextBlock messageTextBlock;
+    private MarkdownScrollViewer markDownScrollViewer;
+
+    public UpdateDialog()
+    {
+        InitializeComponent();
+        Focusable = true;
+        CanResize = false;
+        WindowState = WindowState.Normal;
+        WindowStartupLocation = WindowStartupLocation.CenterScreen;
+        Topmost = true;
+
+        this.DataContext = this;
+        this.Background = Style.BACK.ToBrush();
+        Content.Background = Style.INTERFACE.ToBrush();
+
+        titleBar = this.FindControl<Grid>("TitleBar") ?? throw new InvalidOperationException("TitleBar not found");
+        titleLabel = this.FindControl<Label>("TitleLabel") ?? throw new InvalidOperationException("TitleLabel not found");
+        messageTextBlock = this.FindControl<SelectableTextBlock>("MessageTextBlock") ?? throw new InvalidOperationException("MessageTextBlock not found");
+        markDownScrollViewer = this.FindControl<MarkdownScrollViewer>("MarkDownScrollViewer") ?? throw new InvalidOperationException("MarkDownScrollViewer not found");
+
+        titleLabel.Content = "Update Available".Tr(TC.Dialog);
+    }
+
+    public void SetMessage(string message)
+    {
+        messageTextBlock.Text = message;
+    }
+
+    public void SetMDMessage(string message)
+    {
+        markDownScrollViewer.Markdown = message;
+    }
+
+    public Button AddButton(string text, ButtonType type)
+    {
+        ButtonsPanel.ColumnDefinitions.Add(new ColumnDefinition() { Width = new GridLength(1, GridUnitType.Star) });
+        var button = new Button() { MinWidth = 96, Height = 40 };
+
+        if (type == ButtonType.Primary)
+            button.AddContent(new() { Item = new BorderItem() { CornerRadius = 6 }, ColorSet = new() { Color = Style.BUTTON_PRIMARY, HoveredColor = Style.BUTTON_PRIMARY_HOVER } });
+
+        if (type == ButtonType.Normal)
+            button.AddContent(new() { Item = new BorderItem() { CornerRadius = 6 }, ColorSet = new() { Color = Style.BUTTON_NORMAL, HoveredColor = Style.BUTTON_NORMAL_HOVER } });
+
+        button.AddContent(new() { Item = new TextItem() { Text = text }, ColorSet = new() { Color = type == ButtonType.Primary ? Colors.White : Style.LIGHT_WHITE } });
+
+        button.Clicked += Close;
+        var buttonStack = new StackPanel() { Orientation = Avalonia.Layout.Orientation.Horizontal, HorizontalAlignment = Avalonia.Layout.HorizontalAlignment.Center, Children = { button }, Height = 40, Margin = new(0) };
+
+        Grid.SetColumn(buttonStack, ButtonsPanel.ColumnDefinitions.Count - 1);
+        ButtonsPanel.Children.Add(buttonStack);
+
+        return button;
+    }
+}
+
diff --git a/TuneLab/TuneLab.csproj b/TuneLab/TuneLab.csproj
index ed069a4..4c9b342 100644
--- a/TuneLab/TuneLab.csproj
+++ b/TuneLab/TuneLab.csproj
@@ -27,6 +27,7 @@
 		<PackageReference Include="BunLabs.NAudio.Flac" Version="2.0.1" />
 		<PackageReference Include="Flurl.Http" Version="4.0.2" />
 		<PackageReference Include="IkG2p" Version="1.0.2" />
+		<PackageReference Include="Markdown.Avalonia" Version="11.0.2" />
 		<PackageReference Include="Microsoft.Extensions.ObjectPool" Version="8.0.6" />
 		<PackageReference Include="NAudio" Version="2.2.1" />
 		<PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
diff --git a/TuneLab/UI/MainWindow/Editor/Editor.cs b/TuneLab/UI/MainWindow/Editor/Editor.cs
index cbb25d3..5d261c9 100644
--- a/TuneLab/UI/MainWindow/Editor/Editor.cs
+++ b/TuneLab/UI/MainWindow/Editor/Editor.cs
@@ -655,14 +655,13 @@ public async void InstallExtensions(IEnumerable<string> files)
 
     private async void UpdateDialog(UpdateInfo mUpdateCheck, bool IsAutoCheck)
     {
-        var dialog = new Dialog();
-        dialog.SetTitle("Update Available".Tr(TC.Dialog));
-        dialog.SetMessage("Version".Tr(TC.Dialog) + $": {mUpdateCheck.version}\n" + "Public Date".Tr(TC.Dialog) + $": {mUpdateCheck.publishedAt}\n\n{mUpdateCheck.description}");
-        dialog.SetTextAlignment(Avalonia.Media.TextAlignment.Left);
+        var dialog = new UpdateDialog();
+        dialog.SetMessage("Version".Tr(TC.Dialog) + $": {mUpdateCheck.version}\n" + "Public Date".Tr(TC.Dialog) + $": {mUpdateCheck.publishedAt}");
+        dialog.SetMDMessage(mUpdateCheck.description ?? "");
         if (IsAutoCheck)
-            dialog.AddButton("Ignore".Tr(TC.Dialog), Dialog.ButtonType.Normal).Clicked += () => AppUpdateManager.SaveIgnoreVersion(mUpdateCheck.version);
-        dialog.AddButton("Later".Tr(TC.Dialog), Dialog.ButtonType.Normal);
-        dialog.AddButton("Download".Tr(TC.Dialog), Dialog.ButtonType.Primary).Clicked += () =>
+            dialog.AddButton("Ignore".Tr(TC.Dialog), GUI.UpdateDialog.ButtonType.Normal).Clicked += () => AppUpdateManager.SaveIgnoreVersion(mUpdateCheck.version);
+        dialog.AddButton("Later".Tr(TC.Dialog), GUI.UpdateDialog.ButtonType.Normal);
+        dialog.AddButton("Download".Tr(TC.Dialog), GUI.UpdateDialog.ButtonType.Primary).Clicked += () =>
         {
             ProcessHelper.OpenUrl(mUpdateCheck.url);
         };