diff --git a/components/layout/AiDvPlot/AiDvPlot.vue b/components/layout/AiDvPlot/AiDvPlot.vue
index 04229680..75f76882 100644
--- a/components/layout/AiDvPlot/AiDvPlot.vue
+++ b/components/layout/AiDvPlot/AiDvPlot.vue
@@ -32,6 +32,7 @@ export default {
     },
     handleChangeChart() {
       const series = this.tpl.series || Array(this.plot.dimensions.length - 1).fill(this.tpl.daemon)
+      this.chart.clear()
       this.chart.setOption({
         tooltip: {},
         xAxis: {