diff --git a/src/components/Echarts/renderChart.js b/src/components/Echarts/renderChart.js
index bb31260..54b7fb0 100644
--- a/src/components/Echarts/renderChart.js
+++ b/src/components/Echarts/renderChart.js
@@ -17,6 +17,7 @@ export default function renderChart(props,isFirst) {
     return `
     document.getElementById('main').style.height = "${height}";
     document.getElementById('main').style.width = "${width}";
+    myChart.clear();
     myChart.setOption(${toString(props.option)});
   `
   }