diff --git a/designer-form/src/main/java/com/fr/design/form/parameter/FormParaDesigner.java b/designer-form/src/main/java/com/fr/design/form/parameter/FormParaDesigner.java
index c72aa4512..a91342d4a 100644
--- a/designer-form/src/main/java/com/fr/design/form/parameter/FormParaDesigner.java
+++ b/designer-form/src/main/java/com/fr/design/form/parameter/FormParaDesigner.java
@@ -83,6 +83,7 @@ public class FormParaDesigner extends FormDesigner implements ParameterDesignerP
     private static final int SUBMIT_BUTTON_H_LOCATION = 270;
     private static final int PARA_IMAGE_SHIFT_X = -4;
     private static final int FORM_AREA_PADDING_LEFT = 13;
+    private int addableRegionY;
 
     private static Image paraImage = BaseUtils.readImage("/com/fr/design/images/form/parameter.png");
 
@@ -412,10 +413,30 @@ public class FormParaDesigner extends FormDesigner implements ParameterDesignerP
         if (layoutContainer == null) {
             layoutContainer = new XWParameterLayout();
         }
+        refreshAddableRegion(layoutContainer);
         layoutContainer.setSize(LARGE_PREFERRED_SIZE);
         setRootComponent(layoutContainer);
     }
 
+    /**
+     * @param layoutContainer
+     * @Description: 为了不覆盖以前的组件，所以要计算可以添加组件的区域
+     * @return:
+     * @Author: Henry.Wang
+     * @date: 2020/7/15 15:12
+     */
+    public void refreshAddableRegion(XLayoutContainer layoutContainer) {
+        addableRegionY = 0;
+        for (int i = 0; i < layoutContainer.getComponentCount(); i++) {
+            Rectangle rectangle = layoutContainer.getComponent(i).getBounds();
+            if (addableRegionY < rectangle.y + rectangle.height) {
+                addableRegionY = rectangle.y + rectangle.height;
+            }
+        }
+        int vGap = V_COMPONENT_GAP - (int) XCreator.SMALL_PREFERRED_SIZE.getHeight();
+        addableRegionY = Math.max(0, addableRegionY - FIRST_V_LOCATION + (int) (XCreator.SMALL_PREFERRED_SIZE.getHeight() / 2) + vGap);
+    }
+
     /**
      * 是否是报表的参数面板
      *
@@ -583,14 +604,15 @@ public class FormParaDesigner extends FormDesigner implements ParameterDesignerP
         label.setWidgetName("Label" + name);
         label.setWidgetValue(new WidgetValue(name + ":"));
         XCreator xCreator = XCreatorUtils.createXCreator(label);
-        if (!(this.autoAddComponent(xCreator, H_COMPONENT_GAP * (currentIndex % NUM_IN_A_LINE)
-                + FIRST_H_LOCATION, FIRST_V_LOCATION + V_COMPONENT_GAP * (currentIndex / NUM_IN_A_LINE)))) {
+        int x = H_COMPONENT_GAP * (currentIndex % NUM_IN_A_LINE) + FIRST_H_LOCATION;
+        int y = addableRegionY + FIRST_V_LOCATION + V_COMPONENT_GAP * (currentIndex / NUM_IN_A_LINE);
+        if (!(this.autoAddComponent(xCreator, x, y))) {
             return false;
         }
         EditorHolder editor = new EditorHolder(parameter);
         xCreator = XCreatorUtils.createXCreator(editor);
-        if (!(this.autoAddComponent(xCreator, H_COMPONENT_GAP * (currentIndex % NUM_IN_A_LINE)
-                + SECOND_H_LOCATION, FIRST_V_LOCATION + V_COMPONENT_GAP * (currentIndex / NUM_IN_A_LINE)))) {
+        x = H_COMPONENT_GAP * (currentIndex % NUM_IN_A_LINE) + SECOND_H_LOCATION;
+        if (!(this.autoAddComponent(xCreator, x, y))) {
             return false;
         }
         return true;
@@ -646,16 +668,17 @@ public class FormParaDesigner extends FormDesigner implements ParameterDesignerP
             label.setWidgetValue(new WidgetValue(parameterArray[i].getName() + ":"));
             XCreator xCreator = XCreatorUtils.createXCreator(label);
 
-            if (!(this.autoAddComponent(xCreator, H_COMPONENT_GAP * (currentIndex % NUM_IN_A_LINE)
-                    + FIRST_H_LOCATION, FIRST_V_LOCATION + V_COMPONENT_GAP * (currentIndex / NUM_IN_A_LINE)))) {
+            int x = H_COMPONENT_GAP * (currentIndex % NUM_IN_A_LINE) + FIRST_H_LOCATION;
+            int y = addableRegionY + FIRST_V_LOCATION + V_COMPONENT_GAP * (currentIndex / NUM_IN_A_LINE);
+            if (!(this.autoAddComponent(xCreator, x, y))) {
                 break;
             }
             // 每行显示5组
             EditorHolder editor = new EditorHolder(parameterArray[i]);
             editor.setWidgetName(parameterArray[i].getName());
             xCreator = XCreatorUtils.createXCreator(editor);
-            if (!(this.autoAddComponent(xCreator, H_COMPONENT_GAP * (currentIndex % NUM_IN_A_LINE)
-                    + SECOND_H_LOCATION, FIRST_V_LOCATION + V_COMPONENT_GAP * (currentIndex / NUM_IN_A_LINE)))) {
+            x = H_COMPONENT_GAP * (currentIndex % NUM_IN_A_LINE) + SECOND_H_LOCATION;
+            if (!(this.autoAddComponent(xCreator, x, y))) {
                 break;
             }
             currentIndex++;