diff --git a/frontend/src/views/dataset/add/AddUnion.vue b/frontend/src/views/dataset/add/AddUnion.vue
index 875c597130..6caa95bcad 100644
--- a/frontend/src/views/dataset/add/AddUnion.vue
+++ b/frontend/src/views/dataset/add/AddUnion.vue
@@ -16,7 +16,7 @@
     <el-divider />
     <div>
       <el-form :inline="true" style="display: flex;align-items: center;justify-content: space-between;">
-        <el-form-item class="form-item">
+        <el-form-item class="form-item" :label="$t('commons.name')">
           <el-input v-model="name" size="mini" :placeholder="$t('commons.name')" clearable />
         </el-form-item>
         <el-form-item class="form-item">
@@ -59,7 +59,7 @@
     </div>
 
     <!--选择数据集-->
-    <el-dialog v-if="selectDsDialog" v-dialogDrag :title="$t('chart.select_dataset')" :visible="selectDsDialog" :show-close="false" width="360px" class="dialog-css">
+    <el-dialog v-if="selectDsDialog" v-dialogDrag :title="$t('chart.select_dataset')" :visible="selectDsDialog" :show-close="false" width="400px" class="dialog-css">
       <dataset-group-selector-tree :fix-height="true" show-mode="union" :custom-type="customType" @getTable="firstDs" />
       <div slot="footer" class="dialog-footer">
         <el-button size="mini" @click="closeSelectDs()">{{ $t('dataset.cancel') }}</el-button>
@@ -337,4 +337,8 @@ export default {
 .preview-style >>> .el-drawer .el-drawer__body{
   padding: 0 16px 10px!important;
 }
+.form-item >>> .el-form-item__label{
+  font-size: 12px!important;
+  font-weight: 400!important;
+}
 </style>
diff --git a/frontend/src/views/dataset/add/union/NodeItem.vue b/frontend/src/views/dataset/add/union/NodeItem.vue
index 0c8fa83a59..fb4d005750 100644
--- a/frontend/src/views/dataset/add/union/NodeItem.vue
+++ b/frontend/src/views/dataset/add/union/NodeItem.vue
@@ -28,7 +28,7 @@
     </div>
 
     <!--选择数据集-->
-    <el-dialog v-if="selectDsDialog" v-dialogDrag :title="$t('chart.select_dataset')" :visible="selectDsDialog" :show-close="false" width="360px" class="dialog-css">
+    <el-dialog v-if="selectDsDialog" v-dialogDrag :title="$t('chart.select_dataset')" :visible="selectDsDialog" :show-close="false" width="400px" class="dialog-css">
       <dataset-group-selector-tree :fix-height="true" show-mode="union" :custom-type="customType" :mode="currentNode.currentDs.mode" @getTable="firstDs" />
       <div slot="footer" class="dialog-footer">
         <el-button size="mini" @click="closeSelectDs()">{{ $t('dataset.cancel') }}</el-button>
@@ -37,7 +37,7 @@
     </el-dialog>
 
     <!--编辑单个数据集字段-->
-    <el-dialog v-if="editField" v-dialogDrag :title="$t('dataset.field_select')" :visible="editField" :show-close="false" width="360px" class="dialog-css">
+    <el-dialog v-if="editField" v-dialogDrag :title="$t('dataset.field_select')" :visible="editField" :show-close="false" width="400px" class="dialog-css">
       <union-field-edit :node="currentNode" />
       <div slot="footer" class="dialog-footer">
         <el-button size="mini" @click="closeEditField()">{{ $t('dataset.cancel') }}</el-button>
diff --git a/frontend/src/views/dataset/common/DatasetGroupSelectorTree.vue b/frontend/src/views/dataset/common/DatasetGroupSelectorTree.vue
index 18eddb08be..75f31e063c 100644
--- a/frontend/src/views/dataset/common/DatasetGroupSelectorTree.vue
+++ b/frontend/src/views/dataset/common/DatasetGroupSelectorTree.vue
@@ -173,7 +173,7 @@ export default {
       },
       isTreeSearch: false,
       treeStyle: this.fixHeight ? {
-        height: '200px',
+        height: '300px',
         overflow: 'auto'
       } : {}
     }