diff --git a/nezha-fronted/src/components/charts/chart-list.vue b/nezha-fronted/src/components/charts/chart-list.vue
index 0cf711c52..bd86aabab 100644
--- a/nezha-fronted/src/components/charts/chart-list.vue
+++ b/nezha-fronted/src/components/charts/chart-list.vue
@@ -926,13 +926,9 @@ export default {
                             host = chartItem.elements[innerPos].expression;
                           }
                           //处理legend别名
-
                           let alias=this.$refs['editChart'+chartItem.id][0].dealLegendAlias(host,chartItem.elements[innerPos].legend);
                           if(!alias || alias===''){
-                            alias = chartItem.elements[innerPos].expression;
-                          }
-                          if(alias){
-                            host = alias;
+                            alias = host;
                           }
                           legend.push({name:host+resIndex,alias:alias});
                           // 图表中每条线的名字,去掉最后的逗号与空格:metric名称,  标签1=a,标签2=c
diff --git a/nezha-fronted/src/components/charts/chart-single-stat.vue b/nezha-fronted/src/components/charts/chart-single-stat.vue
index 6322c9bea..a134b74ba 100644
--- a/nezha-fronted/src/components/charts/chart-single-stat.vue
+++ b/nezha-fronted/src/components/charts/chart-single-stat.vue
@@ -393,7 +393,7 @@ export default {
               this.data = chartItem;
               this.unit = chartDataFormat.getUnit(this.data.unit);
               if(Number(seriesItem)){
-                let singleStatTmp =Number(seriesItem).toFixed(2);
+                let singleStatTmp =parseFloat(Number(seriesItem).toFixed(2));
                 this.serieSingleStat = chartDataFormat.getUnit(chartItem.unit?chartItem.unit:2).compute(singleStatTmp,null,2);
               }else {
                 this.serieSingleStat =seriesItem;
@@ -420,7 +420,7 @@ export default {
               this.data = chartItem;
               this.unit = chartDataFormat.getUnit(this.data.unit);
               if(Number(seriesItem)){
-                let singleStatTmp =Number(seriesItem).toFixed(2);
+                let singleStatTmp =parseFloat(Number(seriesItem).toFixed(2));//parseFloat ：如果没有小数点，或者小数点后都是零，parseFloat() 会返回整数。
                 this.serieSingleStat = chartDataFormat.getUnit(chartItem.unit?chartItem.unit:2).compute(singleStatTmp,null,2);
               }else {
                 this.serieSingleStat =seriesItem;
diff --git a/nezha-fronted/src/components/charts/chartPreview.vue b/nezha-fronted/src/components/charts/chartPreview.vue
index 19b7b53f9..cbe95bb0f 100644
--- a/nezha-fronted/src/components/charts/chartPreview.vue
+++ b/nezha-fronted/src/components/charts/chartPreview.vue
@@ -427,10 +427,7 @@
                             //处理legend别名
                             let alias = this.dealLegendAlias(host, chartItem.elements[innerPos].legend);
                             if (!alias || alias === '') {
-                              alias = chartItem.elements[innerPos].expression;
-                            }
-                            if (alias) {
-                              host = alias;
+                              alias = host;
                             }
                             legend.push({name: host + resInnerPos, alias: alias});
                             // 图表中每条线的名字,去掉最后的逗号与空格:metric名称,  标签1=a,标签2=c
@@ -1136,10 +1133,7 @@
                         }
                         let alias=this.dealLegendAlias(host,this.chart.elements[pos].legend);
                         if(!alias || alias===''){
-                          alias = this.chart.elements[pos].expression;
-                        }
-                        if(alias){
-                          host = alias;
+                          alias = host;
                         }
                         legend.push({name:host+innerPos,alias:alias});
                         // 图表中每条线的名字,去掉最后的逗号与空格:metric名称,  标签1=a,标签2=c
diff --git a/nezha-fronted/src/components/charts/line-chart-block.vue b/nezha-fronted/src/components/charts/line-chart-block.vue
index 5fe095864..aca7c4316 100644
--- a/nezha-fronted/src/components/charts/line-chart-block.vue
+++ b/nezha-fronted/src/components/charts/line-chart-block.vue
@@ -1400,10 +1400,7 @@
                         }
                         let alias=this.dealLegendAlias(host,this.data.elements[pos].legend);
                         if(!alias || alias===''){
-                          alias = this.data.elements[pos].expression;
-                        }
-                        if(alias){
-                          host = alias;
+                          alias = host;
                         }
                         legend.push({name:host+innerPos,alias:alias});
                         // 图表中每条线的名字,去掉最后的逗号与空格:metric名称,  标签1=a,标签2=c