diff --git a/src/views/spectrumAnalysis/seriesBuilder.js b/src/views/spectrumAnalysis/seriesBuilder.js
index 94c3bc9..b6c315a 100644
--- a/src/views/spectrumAnalysis/seriesBuilder.js
+++ b/src/views/spectrumAnalysis/seriesBuilder.js
@@ -32,6 +32,7 @@ export const scacLineSeries = buildLineSeries('ScacLine', [], '#fff', {
 export const baseLineCtrlPoint = {
   name: 'BaseLine_Ctrl_Point',
   type: 'scatter',
+  symbolSize: 10,
   data: [],
   emphasis: {
     disabled: true