diff --git a/src/components/Echarts/renderChart.js b/src/components/Echarts/renderChart.js
index 7a595f0..b15d08f 100644
--- a/src/components/Echarts/renderChart.js
+++ b/src/components/Echarts/renderChart.js
@@ -7,5 +7,18 @@ export default function renderChart(props) {
     document.getElementById('main').style.height = "${height}px";
     var myChart = echarts.init(document.getElementById('main'));
     myChart.setOption(${toString(props.option)});
+    myChart.on('click', function(params) {
+      var seen = [];
+      var paramsString = JSON.stringify(params, function(key, val) {
+        if (val != null && typeof val == "object") {
+          if (seen.indexOf(val) >= 0) {
+            return;
+          }
+          seen.push(val);
+        }
+        return val;
+      });
+      window.postMessage(JSON.stringify(paramsString));
+    });
   `
 }