diff --git a/core/frontend/src/views/chart/view/ChartEdit.vue b/core/frontend/src/views/chart/view/ChartEdit.vue
index a78498f7d4..4141ffed15 100644
--- a/core/frontend/src/views/chart/view/ChartEdit.vue
+++ b/core/frontend/src/views/chart/view/ChartEdit.vue
@@ -3715,7 +3715,7 @@ export default {
       this.showValueFormatter = false
     },
     saveValueFormatter() {
-      const formatterItem = _.cloneDeep(this.valueFormatterItem)
+      const formatterItem = JSON.parse(JSON.stringify(this.valueFormatterItem))
       const formatterCfg = formatterItem.formatterCfg
       const ele = formatterCfg.decimalCount
       if (ele === undefined || ele.toString().indexOf('.') > -1 || parseInt(ele).toString() === 'NaN' || parseInt(ele) < 0 || parseInt(ele) > 10) {
diff --git a/core/frontend/src/views/chart/view/DrillPath.vue b/core/frontend/src/views/chart/view/DrillPath.vue
index 053645ba59..671a466862 100644
--- a/core/frontend/src/views/chart/view/DrillPath.vue
+++ b/core/frontend/src/views/chart/view/DrillPath.vue
@@ -16,7 +16,10 @@
         class="drill-item"
         @click.native="drillJump(index + 1)"
       >
-        <span :style="{'color': textColor}">{{ filter.value[0] }}</span>
+        <span
+          :style="{'color': textColor}"
+          :title="filter.value[0]"
+        >{{ filter.value[0] }}</span>
       </el-breadcrumb-item>
     </el-breadcrumb>
   </div>
@@ -97,6 +100,8 @@ export default {
   margin: 0!important;
 }
 .drill-item{
+  max-width: 120px;
+  overflow: hidden;
   cursor: pointer;
 }
 </style>