diff --git a/Bin/SunnyUI.Demo.exe b/Bin/SunnyUI.Demo.exe
index 2d34344b..643f37a2 100644
Binary files a/Bin/SunnyUI.Demo.exe and b/Bin/SunnyUI.Demo.exe differ
diff --git a/Bin/SunnyUI.dll b/Bin/SunnyUI.dll
index 67ff38bf..eba15a47 100644
Binary files a/Bin/SunnyUI.dll and b/Bin/SunnyUI.dll differ
diff --git a/SunnyUI/Controls/UIDoubleUpDown.designer.cs b/SunnyUI/Controls/UIDoubleUpDown.designer.cs
index fb7b67f6..28088b63 100644
--- a/SunnyUI/Controls/UIDoubleUpDown.designer.cs
+++ b/SunnyUI/Controls/UIDoubleUpDown.designer.cs
@@ -43,7 +43,7 @@
             this.btnDec.Margin = new System.Windows.Forms.Padding(0);
             this.btnDec.MinimumSize = new System.Drawing.Size(1, 1);
             this.btnDec.Name = "btnDec";
-            this.btnDec.Padding = new System.Windows.Forms.Padding(26, 0, 0, 0);
+            this.btnDec.Padding = new System.Windows.Forms.Padding(26, 4, 0, 0);
             this.btnDec.RadiusSides = ((Sunny.UI.UICornerRadiusSides)((Sunny.UI.UICornerRadiusSides.LeftTop | Sunny.UI.UICornerRadiusSides.LeftBottom)));
             this.btnDec.Size = new System.Drawing.Size(29, 29);
             this.btnDec.Symbol = 61544;
@@ -61,7 +61,7 @@
             this.btnAdd.Margin = new System.Windows.Forms.Padding(0);
             this.btnAdd.MinimumSize = new System.Drawing.Size(1, 1);
             this.btnAdd.Name = "btnAdd";
-            this.btnAdd.Padding = new System.Windows.Forms.Padding(26, 0, 0, 0);
+            this.btnAdd.Padding = new System.Windows.Forms.Padding(26, 3, 0, 0);
             this.btnAdd.RadiusSides = ((Sunny.UI.UICornerRadiusSides)((Sunny.UI.UICornerRadiusSides.RightTop | Sunny.UI.UICornerRadiusSides.RightBottom)));
             this.btnAdd.Size = new System.Drawing.Size(29, 29);
             this.btnAdd.Symbol = 61543;
diff --git a/SunnyUI/Controls/UIIntegerUpDown.designer.cs b/SunnyUI/Controls/UIIntegerUpDown.designer.cs
index 34aa2c60..4faa1d7b 100644
--- a/SunnyUI/Controls/UIIntegerUpDown.designer.cs
+++ b/SunnyUI/Controls/UIIntegerUpDown.designer.cs
@@ -43,7 +43,7 @@
             this.btnDec.Margin = new System.Windows.Forms.Padding(0);
             this.btnDec.MinimumSize = new System.Drawing.Size(1, 1);
             this.btnDec.Name = "btnDec";
-            this.btnDec.Padding = new System.Windows.Forms.Padding(26, 0, 0, 0);
+            this.btnDec.Padding = new System.Windows.Forms.Padding(26, 4, 0, 0);
             this.btnDec.RadiusSides = ((Sunny.UI.UICornerRadiusSides)((Sunny.UI.UICornerRadiusSides.LeftTop | Sunny.UI.UICornerRadiusSides.LeftBottom)));
             this.btnDec.Size = new System.Drawing.Size(29, 29);
             this.btnDec.Symbol = 61544;
@@ -61,7 +61,7 @@
             this.btnAdd.Margin = new System.Windows.Forms.Padding(0);
             this.btnAdd.MinimumSize = new System.Drawing.Size(1, 1);
             this.btnAdd.Name = "btnAdd";
-            this.btnAdd.Padding = new System.Windows.Forms.Padding(26, 0, 0, 0);
+            this.btnAdd.Padding = new System.Windows.Forms.Padding(26, 3, 0, 0);
             this.btnAdd.RadiusSides = ((Sunny.UI.UICornerRadiusSides)((Sunny.UI.UICornerRadiusSides.RightTop | Sunny.UI.UICornerRadiusSides.RightBottom)));
             this.btnAdd.Size = new System.Drawing.Size(29, 29);
             this.btnAdd.Symbol = 61543;
diff --git a/SunnyUI/Controls/UISymbolButton.cs b/SunnyUI/Controls/UISymbolButton.cs
index 7f7e28c9..ed54d99f 100644
--- a/SunnyUI/Controls/UISymbolButton.cs
+++ b/SunnyUI/Controls/UISymbolButton.cs
@@ -166,6 +166,12 @@ namespace Sunny.UI
             }
         }
 
+        protected override void OnPaddingChanged(EventArgs e)
+        {
+            base.OnPaddingChanged(e);
+            Invalidate();
+        }
+
         protected override void OnPaint(PaintEventArgs e)
         {
             //重绘父类
@@ -195,14 +201,18 @@ namespace Sunny.UI
                         if (Symbol > 0 && Image == null)
                         {
                             e.Graphics.DrawFontImage(Symbol, SymbolSize, color,
-                                new RectangleF((Width - ImageSize.Width) / 2.0f, (Height - ImageSize.Height) / 2.0f,
-                                    ImageSize.Width, ImageSize.Height));
+                                new RectangleF(
+                                    (Width - ImageSize.Width) / 2.0f,
+                                    Padding.Top + (Height - ImageSize.Height - Padding.Top - Padding.Bottom) / 2.0f,
+                                      ImageSize.Width, ImageSize.Height));
                         }
 
                         if (Image != null)
                         {
-                            e.Graphics.DrawImage(Image, (Width - Image.Width) / 2.0f, (Height - Image.Height) / 2.0f,
-                                ImageSize.Width, ImageSize.Height);
+                            e.Graphics.DrawImage(Image,
+                                (Width - ImageSize.Width) / 2.0f,
+                                Padding.Top + (Height - ImageSize.Height - Padding.Top - Padding.Bottom) / 2.0f,
+                                  ImageSize.Width, ImageSize.Height);
                         }
                     }
                 }