diff --git a/oms_web/oms_vue/src/layout/components/Sidebar/index.vue b/oms_web/oms_vue/src/layout/components/Sidebar/index.vue
index cd86ea6c..3d919388 100644
--- a/oms_web/oms_vue/src/layout/components/Sidebar/index.vue
+++ b/oms_web/oms_vue/src/layout/components/Sidebar/index.vue
@@ -3,6 +3,7 @@
         <logo v-if="showLogo" :collapse="isCollapse" />
         <el-scrollbar :class="settings.sideTheme" wrap-class="scrollbar-wrapper">
             <el-menu
+                ref="sideMenu"
                 :default-active="activeMenu"
                 :collapse="isCollapse"
                 :background-color="settings.sideTheme === 'theme-dark' ? variables.menuBackground : variables.menuLightBackground"
@@ -11,6 +12,8 @@
                 :active-text-color="settings.theme"
                 :collapse-transition="false"
                 mode="vertical"
+                @open="handleMenuOpen"
+                @close="handleMenuClose"
             >
                 <sidebar-item
                     v-for="(route, index) in sidebarRouters"
@@ -24,6 +27,7 @@
 </template>
 
 <script>
+import pathLib from 'path'
 import { mapGetters, mapState } from "vuex"
 import Logo from "./Logo"
 import SidebarItem from "./SidebarItem"
@@ -52,6 +56,55 @@ export default {
         isCollapse() {
             return !this.sidebar.opened
         }
+    },
+    methods: {
+        // 监听菜单折叠事件：当折叠"进销存管理"时同步折叠"出库管理"子菜单
+        handleMenuClose(index) {
+            // 在一级路由中找到当前折叠的菜单
+            const closedRoute = this.sidebarRouters.find(route => route.path === index)
+            if (!closedRoute || !closedRoute.children || !closedRoute.children.length) return
+
+            // 找到直属子级中名为"出库管理"的子菜单
+            const outerRoute = closedRoute.children.find(
+                child => !child.hidden && child.meta && child.meta.title === '出库管理'
+            )
+            if (!outerRoute) return
+
+            // 计算"出库管理"在 el-menu 中注册的 index（与展开逻辑保持一致）
+            const outerBasePath = pathLib.resolve(index, outerRoute.path)
+            const outerIndex = pathLib.resolve(outerBasePath, outerRoute.path)
+
+            if (this.$refs.sideMenu) {
+                this.$refs.sideMenu.close(outerIndex)
+            }
+        },
+        // 监听菜单展开事件：当展开的菜单含有"出库管理"子菜单时同步将其展开
+        handleMenuOpen(index) {
+            // 在一级路由中找到当前展开的菜单
+            const openedRoute = this.sidebarRouters.find(route => route.path === index)
+            if (!openedRoute || !openedRoute.children || !openedRoute.children.length) return
+
+            // 找到直属子级中名为"出库管理"且自身含子项的子菜单
+            const outerRoute = openedRoute.children.find(
+                child => !child.hidden && child.meta && child.meta.title === '出库管理'
+            )
+            if (!outerRoute) return
+
+            // 计算"出库管理"对应的 el-menu index
+            // SidebarItem 渲染嵌套菜单时：
+            //   先将 basePath 设为 path.resolve(parentPath, child.path)
+            //   再以新 basePath 计算 el-submenu :index = path.resolve(basePath, child.path)
+            // 因此需要对 child.path 做两次 resolve 才能与注册 index 对齐
+            const outerBasePath = pathLib.resolve(index, outerRoute.path)
+            const outerIndex = pathLib.resolve(outerBasePath, outerRoute.path)
+
+            // 延迟 300ms 展开，确保 el-submenu 子组件已完成挂载并向 el-menu 注册
+            setTimeout(() => {
+                if (this.$refs.sideMenu) {
+                    this.$refs.sideMenu.open(outerIndex)
+                }
+            }, 300)
+        }
     }
 }
 </script>