diff --git a/Assets/Scripts/UI/UIBody3DInfo.cs b/Assets/Scripts/UI/UIBody3DInfo.cs
index 61880c1a..a8648681 100644
--- a/Assets/Scripts/UI/UIBody3DInfo.cs
+++ b/Assets/Scripts/UI/UIBody3DInfo.cs
@@ -131,7 +131,7 @@ namespace QFramework.Example
 
             FontAdd.onClick.AddListener(() =>
             {
-                if (Des.fontSize <= 18)
+                if (Des.fontSize <= 31)
                 {
                     Des.fontSize++;
                 }
@@ -139,7 +139,7 @@ namespace QFramework.Example
 
             FontSub.onClick.AddListener(() =>
             {
-                if (Des.fontSize > 13)
+                if (Des.fontSize > 1)
                 {
                     Des.fontSize--;
                 }