diff --git a/web/src/lang/en_us.js b/web/src/lang/en_us.js
index 930081a4..9507236c 100644
--- a/web/src/lang/en_us.js
+++ b/web/src/lang/en_us.js
@@ -111,7 +111,8 @@ export default {
     copyToPng: 'Png',
     copySuccess: 'Copy success',
     copyFail: 'Copy fail',
-    number: 'Number child nodes'
+    number: 'Number child nodes',
+    expandNodeChild: 'Expand all sub nodes'
   },
   count: {
     words: 'Words',
diff --git a/web/src/lang/zh_cn.js b/web/src/lang/zh_cn.js
index dda55c7d..df8984d0 100644
--- a/web/src/lang/zh_cn.js
+++ b/web/src/lang/zh_cn.js
@@ -111,7 +111,8 @@ export default {
     copyToPng: '图片',
     copySuccess: '复制成功',
     copyFail: '复制失败',
-    number: '编号其子节点'
+    number: '编号其子节点',
+    expandNodeChild: '展开所有下级节点'
   },
   count: {
     words: '字数',
diff --git a/web/src/lang/zh_tw.js b/web/src/lang/zh_tw.js
index 02e322a9..b3fe0e35 100644
--- a/web/src/lang/zh_tw.js
+++ b/web/src/lang/zh_tw.js
@@ -111,7 +111,8 @@ export default {
     copyToPng: '圖片',
     copySuccess: '複製成功',
     copyFail: '複製失敗',
-    number: '將其子節點編號'
+    number: '將其子節點編號',
+    expandNodeChild: '展開所有下級節點'
   },
   count: {
     words: '字數',
diff --git a/web/src/pages/Edit/components/Contextmenu.vue b/web/src/pages/Edit/components/Contextmenu.vue
index c98f2418..d4fcb711 100644
--- a/web/src/pages/Edit/components/Contextmenu.vue
+++ b/web/src/pages/Edit/components/Contextmenu.vue
@@ -56,6 +56,9 @@
         <span class="name">{{ $t('contextmenu.moveDownNode') }}</span>
         <span class="desc">Ctrl + ↓</span>
       </div>
+      <div class="item" @click="exec('EXPAND_ALL')">
+        <span class="name">{{ $t('contextmenu.expandNodeChild') }}</span>
+      </div>
       <div class="item" v-if="supportNumbers">
         <span class="name">{{ $t('contextmenu.number') }}</span>
         <span class="el-icon-arrow-right"></span>
@@ -461,6 +464,9 @@ export default {
             this.node
           )
           break
+        case 'EXPAND_ALL':
+          this.$bus.$emit('execCommand', key, this.node.uid)
+          break
         default:
           this.$bus.$emit('execCommand', key, ...args)
           break