diff --git a/edc-web/app/static/js/test_data.js b/edc-web/app/static/js/test_data.js
index 67cd7bd..7999b2b 100644
--- a/edc-web/app/static/js/test_data.js
+++ b/edc-web/app/static/js/test_data.js
@@ -320,6 +320,16 @@ async function loadChart() {
             type: 'scroll',
             bottom: 0,
         },
+        toolbox: {
+            right: 10,
+            top: 10,
+            feature: {
+                saveAsImage: {
+                    title: '保存图片',
+                    pixelRatio: 2,
+                },
+            },
+        },
         grid: { left: 60, right: 140, top: 60, bottom: 80 },
         xAxis: {
             type: 'category',