diff --git a/designer-form/src/main/java/com/fr/design/mainframe/CoverPane.java b/designer-form/src/main/java/com/fr/design/mainframe/CoverPane.java
index 6bafb317f..2c071a70b 100644
--- a/designer-form/src/main/java/com/fr/design/mainframe/CoverPane.java
+++ b/designer-form/src/main/java/com/fr/design/mainframe/CoverPane.java
@@ -2,12 +2,13 @@ package com.fr.design.mainframe;
 
 import com.fr.base.GraphHelper;
 import com.fr.design.form.util.XCreatorConstants;
-import com.fr.design.gui.ibutton.UIButton;
 import com.fr.design.icon.IconPathConstants;
 import com.fr.general.IOUtils;
 
 import com.fr.stable.Constants;
 
+import java.awt.BasicStroke;
+import java.awt.Stroke;
 import javax.swing.JComponent;
 import java.awt.AlphaComposite;
 import java.awt.Color;
@@ -32,6 +33,8 @@ public class CoverPane extends JComponent {
     protected static final int BORDER_WIDTH = 2;
     public static final int EDIT_BTN_W = 75;
     public static final int EDIT_BTN_H = 20;
+    private static final int BORDER_GAP = 2;
+    private static final BasicStroke BORDER_STROKE = new BasicStroke(2f);
 
     public static void paintEditButton(Graphics g, Component component) {
         int x = 0;
@@ -82,6 +85,11 @@ public class CoverPane extends JComponent {
         g2d.setColor(XCreatorConstants.COVER_COLOR);
         g2d.fillRect(0, 0, component.getWidth(), component.getHeight());
         g2d.setComposite(oldComposite);
+        g2d.setColor(XCreatorConstants.FORM_BORDER_COLOR);
+        Stroke oldStroke = g2d.getStroke();
+        g2d.setStroke(BORDER_STROKE);
+        g2d.drawRect(BORDER_GAP, BORDER_GAP, component.getWidth() - BORDER_GAP * 2, component.getHeight() - BORDER_GAP * 2);
+        g2d.setStroke(oldStroke);
     }
 
     public CoverPane() {