diff --git a/nezha-fronted/src/assets/css/common.scss b/nezha-fronted/src/assets/css/common.scss
index aae8c34f0..79a91fda2 100644
--- a/nezha-fronted/src/assets/css/common.scss
+++ b/nezha-fronted/src/assets/css/common.scss
@@ -680,6 +680,17 @@ textarea {
 .el-option-width303 {
   width: 303px !important;
 }
+
+.el-select-multiple-width640 {
+  width: 640px !important;
+  .el-input{
+    width: 640px !important;
+  }
+  .el-select__tags{
+    width: 608px !important;
+  }
+}
+
 .el-dialog__header{
   position: relative;
 }
diff --git a/nezha-fronted/src/components/common/rightBox/playlistBox.vue b/nezha-fronted/src/components/common/rightBox/playlistBox.vue
index 4c5da6c0a..b637fa618 100644
--- a/nezha-fronted/src/components/common/rightBox/playlistBox.vue
+++ b/nezha-fronted/src/components/common/rightBox/playlistBox.vue
@@ -40,7 +40,7 @@
               :placeholder="$t('el.select.placeholder')"
               popper-class="right-box-select-top prevent-clickoutside"
               size="small"
-              style="width:100%"
+              class="el-select-multiple-width640"
             >
               <el-option
                 v-for="item in dashboardList"