diff --git a/designer-base/src/main/java/com/fr/design/gui/controlpane/UIListGroupControlPane.java b/designer-base/src/main/java/com/fr/design/gui/controlpane/UIListGroupControlPane.java
index ed07ecc2d5..47581fb626 100644
--- a/designer-base/src/main/java/com/fr/design/gui/controlpane/UIListGroupControlPane.java
+++ b/designer-base/src/main/java/com/fr/design/gui/controlpane/UIListGroupControlPane.java
@@ -28,14 +28,7 @@ import javax.swing.event.ListDataEvent;
 import javax.swing.event.ListDataListener;
 import javax.swing.event.ListSelectionEvent;
 import javax.swing.event.ListSelectionListener;
-import java.awt.AlphaComposite;
-import java.awt.BorderLayout;
-import java.awt.Color;
-import java.awt.Dimension;
-import java.awt.FlowLayout;
-import java.awt.FontMetrics;
-import java.awt.Graphics;
-import java.awt.Graphics2D;
+import java.awt.*;
 import java.awt.event.MouseAdapter;
 import java.awt.event.MouseEvent;
 import java.lang.reflect.Constructor;
@@ -146,7 +139,7 @@ public abstract class UIListGroupControlPane extends UIControlPane implements Li
         }
         this.checkButtonEnabled();
         refreshEventListWrapperPane();
-        this.checkGroupPaneSize();
+        this.updateGroupPaneSize(contentPane);
         isPopulating = false;
     }
 
@@ -214,7 +207,7 @@ public abstract class UIListGroupControlPane extends UIControlPane implements Li
         nameEdList.addModNameActionListener(new ModNameActionListener() {
             @Override
             public void nameModed(int index, String oldName, String newName) {
-                checkGroupPaneSize();
+                updateGroupPaneSize(contentPane);
                 saveSettings();
             }
         });
@@ -304,24 +297,30 @@ public abstract class UIListGroupControlPane extends UIControlPane implements Li
     public void onAddItem(NameableCreator creator) {
         updateSelectedNameList(creator);
         getCommonHandlers().onAddItem(creator);
-        checkGroupPaneSize();
+        updateGroupPaneSize(contentPane);
     }
 
     @Override
     public void onRemoveItem() {
         getCommonHandlers().onRemoveItem();
         refreshEventListWrapperPane();
-        checkGroupPaneSize();
+        updateGroupPaneSize(contentPane);
     }
 
     @Override
     public void onCopyItem() {
         getCommonHandlers().onCopyItem();
-        checkGroupPaneSize();
+        updateGroupPaneSize(contentPane);
     }
 
 
-    private void checkGroupPaneSize() {
+    /**
+     * 根据父面板更新对应的面板宽度
+     * （如果小于父面板的宽度就填充到与父面板宽度一致）
+     *
+     * @param parentPane 父面板
+     */
+    private void updateGroupPaneSize(JPanel parentPane) {
         int width = 180;
         Iterator<Map.Entry<String, ListWrapperPane>> iterator = nameEdListMap.entrySet().iterator();
         while (iterator.hasNext()) {
@@ -331,7 +330,9 @@ public abstract class UIListGroupControlPane extends UIControlPane implements Li
             width = Math.max(width, calculateUIListMaxCellWidth(uiList.getModel(), uiList.getFontMetrics(uiList.getFont())));
         }
         iterator = nameEdListMap.entrySet().iterator();
-        width += 30;
+        //contentPane是外层的Panel，如果不进行判断的话宽度就可能会小于contentPanel，右侧会有空隙
+        //所以需要判断一下，如果外层比较宽就取外层的宽度，防止空隙出现
+        width = Math.max(width + 30, parentPane == null ? 0 : parentPane.getWidth());
         while (iterator.hasNext()) {
             Map.Entry<String, ListWrapperPane> entry = iterator.next();
             ListWrapperPane wrapperPane = entry.getValue();