diff --git a/designer-chart/src/main/java/com/fr/van/chart/designer/style/axis/VanChartTimeAxisPane.java b/designer-chart/src/main/java/com/fr/van/chart/designer/style/axis/VanChartTimeAxisPane.java
index b57f0fc2f3..212e8b1fa0 100644
--- a/designer-chart/src/main/java/com/fr/van/chart/designer/style/axis/VanChartTimeAxisPane.java
+++ b/designer-chart/src/main/java/com/fr/van/chart/designer/style/axis/VanChartTimeAxisPane.java
@@ -162,8 +162,8 @@ public class VanChartTimeAxisPane extends VanChartBaseAxisPane {
 
             JPanel mainTickPane = new JPanel();
             mainTickPane.setLayout(new FlowLayout(FlowLayout.LEFT, 0, 0));
-            mainUnitField.setPreferredSize(new Dimension(100,20));
-            secondUnitField.setPreferredSize(new Dimension(100,20));
+            mainUnitField.setPreferredSize(new Dimension(80,20));
+            secondUnitField.setPreferredSize(new Dimension(80,20));
             mainTickPane.add(mainUnitField);
             mainTickPane.add(mainType);