diff --git a/src/components/SelectTree/singleSelect.vue b/src/components/SelectTree/singleSelect.vue
index 7cc7b49..83eb3d8 100644
--- a/src/components/SelectTree/singleSelect.vue
+++ b/src/components/SelectTree/singleSelect.vue
@@ -7,17 +7,19 @@
     class="select-tree scrollbar"
     @show="onShowPopover"
     @hide="onHidePopover">
-    <el-tree
-      ref="tree"
-      :style="`min-width: ${treeWidth}`"
-      :data="data"
-      :props="props"
-      :expand-on-click-node="false"
-      :filter-node-method="filterNode"
-      :default-expand-all="false"
-      highlight-current
-      accordion
-      @node-click="onClickNode"/>
+    <el-scrollbar wrap-style="overflow-x:hidden;" style="height:200px">
+      <el-tree
+        ref="tree"
+        :style="`min-width: ${treeWidth}`"
+        :data="data"
+        :props="props"
+        :expand-on-click-node="false"
+        :filter-node-method="filterNode"
+        :default-expand-all="false"
+        highlight-current
+        accordion
+        @node-click="onClickNode"/>
+    </el-scrollbar>
     <el-input
       slot="reference"
       ref="input"