diff --git a/core/core-frontend/src/views/chart/components/js/panel/charts/line/line.ts b/core/core-frontend/src/views/chart/components/js/panel/charts/line/line.ts
index 31173be216..69a2e2b63e 100644
--- a/core/core-frontend/src/views/chart/components/js/panel/charts/line/line.ts
+++ b/core/core-frontend/src/views/chart/components/js/panel/charts/line/line.ts
@@ -324,7 +324,7 @@ export class Line extends G2PlotChartView<LineOptions, G2Line> {
     }
     optionTmp.legend.marker.style = style => {
       return {
-        r: 5,
+        r: 4,
         fill: style.stroke
       }
     }
diff --git a/core/core-frontend/src/views/chart/components/js/panel/common/common_antv.ts b/core/core-frontend/src/views/chart/components/js/panel/common/common_antv.ts
index 113b6755ce..af74b45e3d 100644
--- a/core/core-frontend/src/views/chart/components/js/panel/common/common_antv.ts
+++ b/core/core-frontend/src/views/chart/components/js/panel/common/common_antv.ts
@@ -308,7 +308,10 @@ export function getLegend(chart: Chart) {
           offsetX: offsetX,
           offsetY: offsetY,
           marker: {
-            symbol: legendSymbol
+            symbol: legendSymbol,
+            style: {
+              r: 4
+            }
           },
           itemHeight: l.fontSize + 4,
           radio: false,