diff --git a/src/views/board/factoryIndex.vue b/src/views/board/factoryIndex.vue
index 7a8fd70..62bc964 100644
--- a/src/views/board/factoryIndex.vue
+++ b/src/views/board/factoryIndex.vue
@@ -518,7 +518,7 @@ export default {
             type: 'value',
             name: '单位(kwh)',
             max: function (value) {
-              return value.max * 1.2;
+              return parseFloat((value.max * 1.2).toFixed(1));
             },
             nameTextStyle: {color: '#ccc'},
             axisLabel: {color: '#ccc'},