diff --git a/ruoyi-ui/src/views/dataStatistics/realtime/left-top.vue b/ruoyi-ui/src/views/dataStatistics/realtime/left-top.vue
index 5b58480..416f68b 100644
--- a/ruoyi-ui/src/views/dataStatistics/realtime/left-top.vue
+++ b/ruoyi-ui/src/views/dataStatistics/realtime/left-top.vue
@@ -80,6 +80,9 @@ export default {
             const seriesData = res.rows.map((item) => parseFloat(item.ds));
             this.chartData.Xdata = axisData;
             this.chartData.Ydata = seriesData;
+          } else {
+            this.chartData.Xdata = [];
+            this.chartData.Ydata = [];
           }
         });
       }