diff --git a/designer-chart/src/main/java/com/fr/design/mainframe/chart/gui/ChangeConfigPane.java b/designer-chart/src/main/java/com/fr/design/mainframe/chart/gui/ChangeConfigPane.java
index f053b09d6..a04acb83d 100644
--- a/designer-chart/src/main/java/com/fr/design/mainframe/chart/gui/ChangeConfigPane.java
+++ b/designer-chart/src/main/java/com/fr/design/mainframe/chart/gui/ChangeConfigPane.java
@@ -10,6 +10,7 @@ import com.fr.chart.base.AttrChangeConfig;
 import com.fr.chart.base.AttrChangeType;
 import com.fr.chart.chartattr.Chart;
 import com.fr.chart.chartattr.ChartCollection;
+import com.fr.chart.chartattr.SwitchTitle;
 import com.fr.design.beans.BasicBeanPane;
 import com.fr.design.dialog.AttrScrollPane;
 import com.fr.design.foldablepane.UIExpandablePane;
@@ -238,13 +239,14 @@ public class ChangeConfigPane extends BasicBeanPane<ChartCollection> {
 
     private void populateSwitchTitlePane(int chartIndex, ChartCollection collection) {
         Chart chart = collection.getChart(chartIndex, Chart.class);
-        Object switchTitle = chart.getSwitchTitle();
+        SwitchTitle switchTitle = chart.getSwitchTitle();
+        Object content = switchTitle.getContent();
         String result = StringUtils.EMPTY;
-        if (switchTitle != null) {
-            if (switchTitle instanceof BaseFormula) {
-                result = ((BaseFormula) switchTitle).getContent();
+        if (content != null) {
+            if (content instanceof BaseFormula) {
+                result = ((BaseFormula) content).getContent();
             } else {
-                result = Utils.objectToString(switchTitle);
+                result = Utils.objectToString(content);
             }
         }
         TinyFormulaPane title = new TinyFormulaPane();
@@ -345,7 +347,7 @@ public class ChangeConfigPane extends BasicBeanPane<ChartCollection> {
             } else {
                 titleObj = titleString;
             }
-            collection.getChart(i, Chart.class).setSwitchTitle(titleObj);
+            collection.getChart(i, Chart.class).setSwitchTitle(new SwitchTitle(titleObj));
         }
     }