diff --git a/designer-realize/src/main/java/com/fr/design/cell/editor/RichTextToolBar.java b/designer-realize/src/main/java/com/fr/design/cell/editor/RichTextToolBar.java
index a8f4b2ac1..fb904e219 100644
--- a/designer-realize/src/main/java/com/fr/design/cell/editor/RichTextToolBar.java
+++ b/designer-realize/src/main/java/com/fr/design/cell/editor/RichTextToolBar.java
@@ -502,14 +502,15 @@ public class RichTextToolBar extends BasicPane{
 
 	//pt转为px =*4/3
 	private int scaleUp(int fontSize) {
-		return (int) FontTransformUtil.pt2px(fontSize);
+		return roundUp(FontTransformUtil.pt2px(fontSize));
 	}
 
 	//px转pt = *3/4
 	private int scaleDown(int fontSize) {
-		return (int) FontTransformUtil.px2pt(fontSize);
+		return roundUp(FontTransformUtil.px2pt(fontSize));
 	}
 
+
 	private DocumentListener inputListener = new DocumentListener() {
 
 		@Override
diff --git a/designer-realize/src/test/java/com/fr/design/cell/editor/RichTextToolBarTest.java b/designer-realize/src/test/java/com/fr/design/cell/editor/RichTextToolBarTest.java
new file mode 100644
index 000000000..7cae136d7
--- /dev/null
+++ b/designer-realize/src/test/java/com/fr/design/cell/editor/RichTextToolBarTest.java
@@ -0,0 +1,69 @@
+package com.fr.design.cell.editor;
+
+import com.fr.invoke.Reflect;
+import org.easymock.EasyMock;
+import org.junit.Assert;
+import org.junit.Test;
+
+/**
+ * Created by kerry on 2020-09-21
+ */
+public class RichTextToolBarTest {
+    @Test
+    public void testScaleUpAndDown() {
+        RichTextToolBar textToolBar = EasyMock.mock(RichTextToolBar.class);
+
+        int result = Reflect.on(textToolBar).call("scaleUp", 10).get();
+        Assert.assertEquals(13, result);
+        result = Reflect.on(textToolBar).call("scaleDown", 13).get();
+        Assert.assertEquals(10, result);
+
+        result = Reflect.on(textToolBar).call("scaleUp", 11).get();
+        Assert.assertEquals(15, result);
+        result = Reflect.on(textToolBar).call("scaleDown", 15).get();
+        Assert.assertEquals(11, result);
+
+        result = Reflect.on(textToolBar).call("scaleUp", 12).get();
+        Assert.assertEquals(16, result);
+        result = Reflect.on(textToolBar).call("scaleDown", 16).get();
+        Assert.assertEquals(12, result);
+
+
+        result = Reflect.on(textToolBar).call("scaleUp", 13).get();
+        Assert.assertEquals(17, result);
+        result = Reflect.on(textToolBar).call("scaleDown", 17).get();
+        Assert.assertEquals(13, result);
+
+        result = Reflect.on(textToolBar).call("scaleUp", 14).get();
+        Assert.assertEquals(19, result);
+        result = Reflect.on(textToolBar).call("scaleDown", 19).get();
+        Assert.assertEquals(14, result);
+
+        result = Reflect.on(textToolBar).call("scaleUp", 16).get();
+        Assert.assertEquals(21, result);
+        result = Reflect.on(textToolBar).call("scaleDown", 21).get();
+        Assert.assertEquals(16, result);
+
+
+        result = Reflect.on(textToolBar).call("scaleUp", 17).get();
+        Assert.assertEquals(23, result);
+        result = Reflect.on(textToolBar).call("scaleDown", 23).get();
+        Assert.assertEquals(17, result);
+
+        result = Reflect.on(textToolBar).call("scaleUp", 17).get();
+        Assert.assertEquals(23, result);
+        result = Reflect.on(textToolBar).call("scaleDown", 23).get();
+        Assert.assertEquals(17, result);
+
+        result = Reflect.on(textToolBar).call("scaleUp", 19).get();
+        Assert.assertEquals(25, result);
+        result = Reflect.on(textToolBar).call("scaleDown", 25).get();
+        Assert.assertEquals(19, result);
+
+        result = Reflect.on(textToolBar).call("scaleUp", 20).get();
+        Assert.assertEquals(27, result);
+        result = Reflect.on(textToolBar).call("scaleDown", 27).get();
+        Assert.assertEquals(20, result);
+    }
+
+}