diff --git a/ruoyi-ui/src/views/dataStatistics/realtime/left-top.vue b/ruoyi-ui/src/views/dataStatistics/realtime/left-top.vue
index 738c850..2162dca 100644
--- a/ruoyi-ui/src/views/dataStatistics/realtime/left-top.vue
+++ b/ruoyi-ui/src/views/dataStatistics/realtime/left-top.vue
@@ -41,7 +41,29 @@ export default {
         id: "main",
         Xdata: [],
         Ydata: [],
-        option: {},
+        option: {
+          tooltip: {
+            trigger: "axis",
+            axisPointer: {
+              type: "cross",
+              label: {
+                backgroundColor: "#6a7985",
+              },
+            },
+            formatter: function (params) {
+              return (
+                `${params[0].name}
+                 <br />
+                  ${params[0].marker}
+                  读数
+                  :
+                  <strong>${params[0].value}</strong>
+                  mg/m³
+                `
+              );
+            },
+          },
+        },
       },
       refreshDebounce: null,
     };