diff --git a/src/pages/index/components/pests-chart.vue b/src/pages/index/components/pests-chart.vue
index 7395dcd..f21e8ee 100644
--- a/src/pages/index/components/pests-chart.vue
+++ b/src/pages/index/components/pests-chart.vue
@@ -144,8 +144,10 @@ export default {
           rotateAngle: 30,
         },
         yAxis: {
+          min: 1,
           data: [
             {
+              tofix: 1,
               min: 0,
             },
           ],
@@ -219,7 +221,7 @@ export default {
           }
         )
         const { data: resData } = data
-   
+
         const xAxis = []
         const seriesData = []
 
@@ -227,7 +229,10 @@ export default {
           xAxis.push(key)
           seriesData.push(resData[key])
         })
-
+        const max = Math.max(...seriesData)
+        let maxN = Math.ceil(max / 5) * 5
+        maxN = maxN === 0 ? 5 : maxN
+        this.opts.yAxis.data[0].max = maxN
         let res = {
           categories: xAxis,
           series: [
@@ -235,7 +240,6 @@ export default {
               name: '虫情统计',
               data: seriesData,
             },
-           
           ],
         }
         this.chartData = JSON.parse(JSON.stringify(res))