diff --git a/src/views/documentTool/documentComparison/DocumentDataComparison.vue b/src/views/documentTool/documentComparison/DocumentDataComparison.vue
index 9514c3be..0961226a 100644
--- a/src/views/documentTool/documentComparison/DocumentDataComparison.vue
+++ b/src/views/documentTool/documentComparison/DocumentDataComparison.vue
@@ -53,7 +53,7 @@
                 <a-icon slot="switcherIcon" type="down" :style="{ fontSize: '12px', color: '#103770' }" />
                 <template slot="title" slot-scope="{title}">
                   <!-- 目录前三个和有子集的标题加粗 -->
-                  <span :style="title.indexOf('.')===-1?'font-weight: 600;':''">{{ title }}</span>
+                  <span :style="title.indexOf('.')===-1?'font-weight: 600;':''" :title="title">{{ title }}</span>
                 </template>
               </a-tree>
             </div>
@@ -99,7 +99,7 @@
                 <a-icon slot="switcherIcon" type="down" :style="{ fontSize: '12px', color: '#103770' }" />
                 <template slot="title" slot-scope="{title}">
                   <!-- 目录前三个和有子集的标题加粗 -->
-                  <span :style="title.indexOf('.')===-1?'font-weight: 600;':''">{{ title }}</span>
+                  <span :style="title.indexOf('.')===-1?'font-weight: 600;':''" :title="title">{{ title }}</span>
                 </template>
               </a-tree>
             </div>
@@ -695,7 +695,12 @@ export default {
   margin: 10px 10px 10px 0;
   position: relative;
   transition: width .2s linear;
-
+  /deep/ .ant-tree li .ant-tree-node-content-wrapper{
+    max-width: calc(100% - 24px);
+    &:hover {
+      max-width: 100%;
+    }
+  }
   /deep/ .ant-tree li .ant-tree-node-content-wrapper.ant-tree-node-selected {
     background-color: transparent !important;
     color: @primary-color;