diff --git a/src/packages/components/Charts/Pies/PieCommon/config.ts b/src/packages/components/Charts/Pies/PieCommon/config.ts
index 35cc632f..09985dbe 100644
--- a/src/packages/components/Charts/Pies/PieCommon/config.ts
+++ b/src/packages/components/Charts/Pies/PieCommon/config.ts
@@ -61,7 +61,7 @@ const option = {
       emphasis: {
         label: {
           show: true,
-          fontSize: '40',
+          fontSize: 40,
           fontWeight: 'bold'
         }
       },