diff --git a/src/Resources/Locales/en_US.axaml b/src/Resources/Locales/en_US.axaml
index 562fb190..98334853 100644
--- a/src/Resources/Locales/en_US.axaml
+++ b/src/Resources/Locales/en_US.axaml
@@ -166,6 +166,7 @@
   <x:String x:Key="Text.CommitDetail.Info.Signer" xml:space="preserve">Signer:</x:String>
   <x:String x:Key="Text.CommitDetail.Info.WebLinks" xml:space="preserve">Open in Browser</x:String>
   <x:String x:Key="Text.CommitMessageTextBox.MessagePlaceholder" xml:space="preserve">Description</x:String>
+  <x:String x:Key="Text.CommitMessageTextBox.PasteAndReplaceAll" xml:space="preserve">Paste (Replace all)</x:String>
   <x:String x:Key="Text.CommitMessageTextBox.SubjectCount" xml:space="preserve">SUBJECT</x:String>
   <x:String x:Key="Text.CommitMessageTextBox.SubjectPlaceholder" xml:space="preserve">Enter commit subject</x:String>
   <x:String x:Key="Text.Configure" xml:space="preserve">Repository Configure</x:String>
diff --git a/src/Resources/Locales/zh_CN.axaml b/src/Resources/Locales/zh_CN.axaml
index 18e4cf47..59d06e3e 100644
--- a/src/Resources/Locales/zh_CN.axaml
+++ b/src/Resources/Locales/zh_CN.axaml
@@ -170,6 +170,7 @@
   <x:String x:Key="Text.CommitDetail.Info.Signer" xml:space="preserve">签名者 ：</x:String>
   <x:String x:Key="Text.CommitDetail.Info.WebLinks" xml:space="preserve">浏览器中查看</x:String>
   <x:String x:Key="Text.CommitMessageTextBox.MessagePlaceholder" xml:space="preserve">详细描述</x:String>
+  <x:String x:Key="Text.CommitMessageTextBox.PasteAndReplaceAll" xml:space="preserve">粘贴（替换全部）</x:String>
   <x:String x:Key="Text.CommitMessageTextBox.SubjectCount" xml:space="preserve">主题</x:String>
   <x:String x:Key="Text.CommitMessageTextBox.SubjectPlaceholder" xml:space="preserve">填写提交信息主题</x:String>
   <x:String x:Key="Text.Configure" xml:space="preserve">仓库配置</x:String>
diff --git a/src/Resources/Locales/zh_TW.axaml b/src/Resources/Locales/zh_TW.axaml
index 30666ab1..78539749 100644
--- a/src/Resources/Locales/zh_TW.axaml
+++ b/src/Resources/Locales/zh_TW.axaml
@@ -170,6 +170,7 @@
   <x:String x:Key="Text.CommitDetail.Info.Signer" xml:space="preserve">簽署人:</x:String>
   <x:String x:Key="Text.CommitDetail.Info.WebLinks" xml:space="preserve">在瀏覽器中檢視</x:String>
   <x:String x:Key="Text.CommitMessageTextBox.MessagePlaceholder" xml:space="preserve">詳細描述</x:String>
+  <x:String x:Key="Text.CommitMessageTextBox.PasteAndReplaceAll" xml:space="preserve">粘貼（替換所有內容）</x:String>
   <x:String x:Key="Text.CommitMessageTextBox.SubjectCount" xml:space="preserve">標題</x:String>
   <x:String x:Key="Text.CommitMessageTextBox.SubjectPlaceholder" xml:space="preserve">填寫提交訊息標題</x:String>
   <x:String x:Key="Text.Configure" xml:space="preserve">存放庫設定</x:String>
diff --git a/src/Views/CommitMessageTextBox.axaml b/src/Views/CommitMessageTextBox.axaml
index 794ebaa4..8d99bf66 100644
--- a/src/Views/CommitMessageTextBox.axaml
+++ b/src/Views/CommitMessageTextBox.axaml
@@ -66,7 +66,7 @@
               Background="{DynamicResource Brush.Window}"
               BorderThickness="1,0,0,0"
               CornerRadius="0,0,4,4">
-        <Grid ColumnDefinitions="Auto,Auto,Auto,Auto,*" Margin="0,4">
+        <Grid ColumnDefinitions="Auto,Auto,Auto,Auto,Auto,*" Margin="0,4">
           <Button Grid.Column="0"
                   Classes="icon_button"
                   Width="24"
@@ -105,7 +105,16 @@
             <Path Width="13" Height="13" Data="{StaticResource Icons.Copy}"/>
           </Button>
 
-          <StackPanel Grid.Column="4"
+          <Button Grid.Column="4"
+                  Classes="icon_button"
+                  Width="24"
+                  Margin="0,0,4,0" Padding="0"
+                  Click="PasteAndReplaceAllText"
+                  ToolTip.Tip="{DynamicResource Text.CommitMessageTextBox.PasteAndReplaceAll}">
+            <Path Width="13" Height="13" Data="{StaticResource Icons.Paste}"/>
+          </Button>
+
+          <StackPanel Grid.Column="5"
                       Margin="0,0,6,0"
                       HorizontalAlignment="Right"
                       VerticalAlignment="Center"
diff --git a/src/Views/CommitMessageTextBox.axaml.cs b/src/Views/CommitMessageTextBox.axaml.cs
index 5ee219db..0fd0b487 100644
--- a/src/Views/CommitMessageTextBox.axaml.cs
+++ b/src/Views/CommitMessageTextBox.axaml.cs
@@ -356,6 +356,26 @@ namespace SourceGit.Views
             e.Handled = true;
         }
 
+        private async void PasteAndReplaceAllText(object sender, RoutedEventArgs e)
+        {
+            try
+            {
+                var text = await App.GetClipboardTextAsync();
+                if (!string.IsNullOrEmpty(text))
+                {
+                    var parts = text.ReplaceLineEndings("\n").Split("\n", 2);
+                    var subject = parts[0];
+                    Text = parts.Length > 1 ? $"{subject}\n\n{parts[1].Trim()}" : subject;
+                }
+            }
+            catch
+            {
+                // Ignore exceptions.
+            }
+
+            e.Handled = true;
+        }
+
         private TextChangeWay _changingWay = TextChangeWay.None;
     }
 }