diff --git a/cocos/2d/CCLabel.cpp b/cocos/2d/CCLabel.cpp
index ede619ef3a..4d90072e29 100644
--- a/cocos/2d/CCLabel.cpp
+++ b/cocos/2d/CCLabel.cpp
@@ -840,14 +840,14 @@ bool Label::updateQuads()
                     _reusedRect.size.height -= clipTop;
                     py -= clipTop;
                 }
-                if (py - letterDef.height < _tailoredBottomY)
+                if (py - letterDef.height * _bmfontScale < _tailoredBottomY)
                 {
                     _reusedRect.size.height = (py < _tailoredBottomY) ? 0.f : (py - _tailoredBottomY);
                 }
             }
 
             if(!_enableWrap){
-                auto px = _lettersInfo[ctr].positionX + letterDef.width/2 + _linesOffsetX[_lettersInfo[ctr].lineIndex];
+                auto px = _lettersInfo[ctr].positionX + letterDef.width/2 * _bmfontScale + _linesOffsetX[_lettersInfo[ctr].lineIndex];
                 if(_labelWidth > 0.f){
                     if (px > _contentSize.width || px < 0) {
                         if(_overflow == Overflow::CLAMP){
diff --git a/cocos/2d/CCLabelTextFormatter.cpp b/cocos/2d/CCLabelTextFormatter.cpp
index 9454b39e46..00cbbbe7f0 100644
--- a/cocos/2d/CCLabelTextFormatter.cpp
+++ b/cocos/2d/CCLabelTextFormatter.cpp
@@ -267,7 +267,7 @@ bool Label::isHorizontalClamp()
         {
             auto& letterDef = _fontAtlas->_letterDefinitions[_lettersInfo[ctr].utf16Char];
             
-            auto px = _lettersInfo[ctr].positionX + letterDef.width/2;
+            auto px = _lettersInfo[ctr].positionX + letterDef.width/2 * _bmfontScale;
             if(_labelWidth > 0.f){
                 if (px > _contentSize.width) {
                     letterClamp = true;