diff --git a/SpineViewer/src/MainForm.Designer.cs b/SpineViewer/src/MainForm.Designer.cs
index de9fcb9..fe6deff 100644
--- a/SpineViewer/src/MainForm.Designer.cs
+++ b/SpineViewer/src/MainForm.Designer.cs
@@ -339,6 +339,7 @@
             spinePreviewer.Dock = DockStyle.Fill;
             spinePreviewer.Location = new Point(3, 26);
             spinePreviewer.Name = "spinePreviewer";
+            spinePreviewer.PropertyGrid = propertyGrid_Previewer;
             spinePreviewer.Size = new Size(986, 766);
             spinePreviewer.TabIndex = 0;
             spinePreviewer.RenderFrame += spinePreviewer_RenderFrame;
diff --git a/SpineViewer/src/MainForm.cs b/SpineViewer/src/MainForm.cs
index 5b1caad..e7ca514 100644
--- a/SpineViewer/src/MainForm.cs
+++ b/SpineViewer/src/MainForm.cs
@@ -10,10 +10,7 @@ namespace SpineViewer
         public MainForm()
         {
             InitializeComponent();
-            propertyGrid_Previewer.SelectedObject = spinePreviewer.Property;
-
             InitializeLogConfiguration();
-            spinePreviewer.Property.Resolution = new(1280, 720);
             spinePreviewer.StartPreview();
         }
 
@@ -113,7 +110,7 @@ namespace SpineViewer
 
         private void propertyGrid_PropertyValueChanged(object sender, PropertyValueChangedEventArgs e)
         {
-            (sender as PropertyGrid).Refresh();
+            (sender as PropertyGrid)?.Refresh();
         }
 
         #endregion
diff --git a/SpineViewer/src/SpinePreviewer.Designer.cs b/SpineViewer/src/SpinePreviewer.Designer.cs
index 0e26d8f..8290bc2 100644
--- a/SpineViewer/src/SpinePreviewer.Designer.cs
+++ b/SpineViewer/src/SpinePreviewer.Designer.cs
@@ -43,6 +43,7 @@
             panel.MouseDown += panel_MouseDown;
             panel.MouseMove += panel_MouseMove;
             panel.MouseUp += panel_MouseUp;
+            panel.MouseWheel += panel_MouseWheel;
             // 
             // backgroundWorker
             // 
diff --git a/SpineViewer/src/SpinePreviewer.cs b/SpineViewer/src/SpinePreviewer.cs
index 23bca08..14eda3c 100644
--- a/SpineViewer/src/SpinePreviewer.cs
+++ b/SpineViewer/src/SpinePreviewer.cs
@@ -13,7 +13,7 @@ namespace SpineViewer
 {
     public partial class SpinePreviewer : UserControl
     {
-        public class PreviewerProperty
+        private class PreviewerProperty
         {
             public const float ZOOM_MAX = 1000f;
             public const float ZOOM_MIN = 0.001f;
@@ -161,9 +161,19 @@ namespace SpineViewer
             }
         }
 
-        /// <summary>
-        /// 帧渲染事件
-        /// </summary>
+        [Category("自定义"), Description("用于显示画面属性的属性页")]
+        public PropertyGrid? PropertyGrid
+        {
+            get => propertyGrid;
+            set
+            {
+                propertyGrid = value;
+                if (propertyGrid is not null)
+                    propertyGrid.SelectedObject = Property;
+            }
+        }
+        private PropertyGrid? propertyGrid;
+
         [Category("自定义"), Description("帧渲染事件")]
         public event EventHandler<RenderFrameEventArgs>? RenderFrame;
         private void OnRenderFrame(float delta) { RenderFrame?.Invoke(this, new(RenderWindow, delta)); }
@@ -171,9 +181,7 @@ namespace SpineViewer
         private readonly SFML.Graphics.RenderWindow RenderWindow;
         private readonly SFML.System.Clock Clock = new();
         private readonly SFML.Graphics.Color BackgroundColor = SFML.Graphics.Color.Green;
-
-        [Browsable(false)]
-        public PreviewerProperty Property { get; }
+        private readonly PreviewerProperty Property;
 
         public SpinePreviewer()
         {
@@ -244,6 +252,12 @@ namespace SpineViewer
 
         }
 
+        private void panel_MouseWheel(object sender, MouseEventArgs e)
+        {
+            Property.Zoom *= (e.Delta > 0 ? 1.1f : 0.9f);
+            PropertyGrid?.Refresh();
+        }
+
         private void backgroundWorker_DoWork(object sender, DoWorkEventArgs e)
         {
             RenderWindow.SetActive(true);