diff --git a/src/api/factory/accessSite.js b/src/api/factory/accessSite.js
index 89359c5..6eb0bdf 100644
--- a/src/api/factory/accessSite.js
+++ b/src/api/factory/accessSite.js
@@ -10,3 +10,9 @@ export const saveUserAccessSiteList = data => createAPI(`/accessSite/saveUserAcc
  * @param {Object} data - 包含用户名的参数对象
  */
 export const getUserAuthorizedSites = data => createAPI(`accessSite/getUserAuthorizedSites`, 'post', data)
+
+/**
+ * 根据用户名获取用户授权的子site编码集合
+ * @param {Object} data - 包含用户名的参数对象
+ */
+export const getUserAuthorizedSubSiteCodes = data => createAPI(`accessSite/getUserAuthorizedSubSiteCodes`, 'post', data)
diff --git a/src/store/modules/user.js b/src/store/modules/user.js
index 5e6891a..db1d6b5 100644
--- a/src/store/modules/user.js
+++ b/src/store/modules/user.js
@@ -9,7 +9,8 @@ export default {
     userDev: false,
     multiLanguage: '',
     authControl: '',
-    linkedCustomerId: ''
+    linkedCustomerId: '',
+    subSiteCodeList: []
   },
   mutations: {
     updateId (state, id) {
@@ -35,6 +36,9 @@ export default {
     },
     updateAuthControl (state,authControl){
       state.authControl =  authControl
+    },
+    updateSubSiteCodeList (state, subSiteCodeList) {
+      state.subSiteCodeList = subSiteCodeList
     }
   }
 }
diff --git a/src/utils/index.js b/src/utils/index.js
index a0836ce..e25b878 100644
--- a/src/utils/index.js
+++ b/src/utils/index.js
@@ -53,6 +53,7 @@ export function treeDataTranslate (data, id = 'id', pid = 'parentId') {
  */
 export function clearLoginInfo () {
   Vue.cookie.delete('token')
+  localStorage.removeItem('userSubSiteCodeList')
   store.commit('resetStore')
   router.options.isAddDynamicMenuRoutes = false
 }
diff --git a/src/views/common/login.vue b/src/views/common/login.vue
index a58324b..065ef2e 100644
--- a/src/views/common/login.vue
+++ b/src/views/common/login.vue
@@ -94,7 +94,7 @@
 
 <script>
 import {searchSysLanguage} from "@/api/sysLanguage.js"
-import {getUserAuthorizedSites} from "@/api/factory/accessSite.js"
+import {getUserAuthorizedSites, getUserAuthorizedSubSiteCodes} from "@/api/factory/accessSite.js"
 
 export default {
   data() {
@@ -170,6 +170,26 @@ export default {
         this.$message.error('获取工厂列表失败');
       })
     },
+    // 登录后缓存用户子site编码集合，供后续页面按需使用
+    cacheUserAuthorizedSubSiteCodes(userName, site) {
+      if (!userName || !userName.trim() || !site) {
+        this.$store.commit('user/updateSubSiteCodeList', [])
+        localStorage.setItem('userSubSiteCodeList', JSON.stringify([]))
+        return Promise.resolve([])
+      }
+      return getUserAuthorizedSubSiteCodes({ userName: userName.trim(), site: site }).then(({data}) => {
+        const sourceList = (data && data.code === 0) ? (data.data || []) : []
+        const subSiteCodeList = Array.from(new Set((sourceList || []).filter(item => !!item)))
+        this.$store.commit('user/updateSubSiteCodeList', subSiteCodeList)
+        localStorage.setItem('userSubSiteCodeList', JSON.stringify(subSiteCodeList))
+        return subSiteCodeList
+      }).catch(error => {
+        console.error('缓存子site编码失败:', error)
+        this.$store.commit('user/updateSubSiteCodeList', [])
+        localStorage.setItem('userSubSiteCodeList', JSON.stringify([]))
+        return []
+      })
+    },
     dataFormSubmit() {
       if (!this.selectedSite) {
         this.$message.error('请选择工厂');
@@ -194,8 +214,9 @@ export default {
           localStorage.setItem('site', this.selectedSite);
 
           this.$store.commit('user/updateSite', this.selectedSite);
-
-          this.$router.replace({ name: 'home' });
+          this.cacheUserAuthorizedSubSiteCodes(this.dataForm.userName, this.selectedSite).finally(() => {
+            this.$router.replace({ name: 'home' });
+          })
         } else {
           this.$alert(data.msg, '错误', {
             confirmButtonText: '确定'
diff --git a/src/views/main.vue b/src/views/main.vue
index 6896f09..5a6097f 100644
--- a/src/views/main.vue
+++ b/src/views/main.vue
@@ -463,6 +463,14 @@ export default {
           this.userName = data.user.username
           this.languageDefault = data.user.languageDefault
           this.userDisplay = data.user.userDisplay
+          let userSubSiteCodeList = []
+          try {
+            const cacheValue = JSON.parse(localStorage.getItem('userSubSiteCodeList') || '[]')
+            userSubSiteCodeList = Array.isArray(cacheValue) ? cacheValue : []
+          } catch (e) {
+            userSubSiteCodeList = []
+          }
+          this.$store.commit('user/updateSubSiteCodeList', userSubSiteCodeList)
         }
       })
     },
diff --git a/src/views/modules/recv/recv.vue b/src/views/modules/recv/recv.vue
index 3a750b2..74694c2 100644
--- a/src/views/modules/recv/recv.vue
+++ b/src/views/modules/recv/recv.vue
@@ -260,9 +260,10 @@ export default {
       // 开始搜索时显示loading
       this.loadingText = '搜索中...';
       this.fullscreenLoading = true;
-
       getPoList({ poNumber: this.scanCode,site: this.site }).then(({ data }) => {
         if (data.code === 0) {
+          /*let subSiteCodeList = localStorage.getItem('userSubSiteCodeList') ;
+          let subSiteCodeList2 = this.$store.state.user.subSiteCodeList;*/
           this.poList = data.rows
         } else {
           this.$message.error(data.msg || '操作失败');