diff --git a/bms-back/ruoyi-system/src/main/java/com/ruoyi/customer/customerinfo/domain/BmsCustomer.java b/bms-back/ruoyi-system/src/main/java/com/ruoyi/customer/customerinfo/domain/BmsCustomer.java
index 18842af5..5c06e336 100644
--- a/bms-back/ruoyi-system/src/main/java/com/ruoyi/customer/customerinfo/domain/BmsCustomer.java
+++ b/bms-back/ruoyi-system/src/main/java/com/ruoyi/customer/customerinfo/domain/BmsCustomer.java
@@ -107,9 +107,9 @@ public class BmsCustomer extends BaseEntity
     @Excel(name = "信用额度", readConverterExp = "元=")
     private BigDecimal creditEd;
 
-    /** 绑定产品ID（多个产品ID用逗号分隔，支持批量操作） */
-    @Excel(name = "绑定产品ID", readConverterExp = "多=个产品ID用逗号分隔，支持批量操作")
-    private String productIds;
+    /** 绑定产品代码（多个产品代码用逗号分隔；旧库导入产品ID不稳定，统一用代码对接） */
+    @Excel(name = "绑定产品代码")
+    private String productCodes;
 
     /** 附件列表（子表 bms_customer_attachment） */
     private List<BmsCustomerAttachment> attachmentList;
diff --git a/bms-back/ruoyi-system/src/main/resources/mapper/customer/BmsCustomerMapper.xml b/bms-back/ruoyi-system/src/main/resources/mapper/customer/BmsCustomerMapper.xml
index b116013b..034cd76c 100644
--- a/bms-back/ruoyi-system/src/main/resources/mapper/customer/BmsCustomerMapper.xml
+++ b/bms-back/ruoyi-system/src/main/resources/mapper/customer/BmsCustomerMapper.xml
@@ -27,7 +27,7 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
         <result property="weightThreshold"    column="weight_threshold"    />
         <result property="throwRatio"    column="throw_ratio"    />
         <result property="creditEd"    column="credit_ed"    />
-        <result property="productIds"    column="product_ids"    />
+        <result property="productCodes"  column="product_codes"  />
         <result property="remark"    column="remark"    />
         <result property="createBy"    column="create_by"    />
         <result property="createTime"    column="create_time"    />
@@ -51,7 +51,7 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
                (select coalesce(sum(ca.total_credit+ca.extra_credit-ca.used_credit), 0) from customer_account ca
                 where ca.customer_id = c.customer_id and ca.del_flag = '0') as credit_ed,
 
-               c.product_ids, c.remark,
+               c.product_codes, c.remark,
                c.create_by, c.create_time, c.update_by, c.update_time, c.del_flag
         from bms_customer c
         <!-- 数据权限：销售（仅本人 c.sales_user_id）/销售经理（本部门 su.dept_id）；
@@ -82,7 +82,7 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
             <if test="weightThreshold != null "> and c.weight_threshold = #{weightThreshold}</if>
             <if test="throwRatio != null "> and c.throw_ratio = #{throwRatio}</if>
             <if test="creditEd != null "> and c.credit_ed = #{creditEd}</if>
-            <if test="productIds != null  and productIds != ''"> and c.product_ids = #{productIds}</if>
+            <if test="productCodes != null  and productCodes != ''"> and c.product_codes = #{productCodes}</if>
             <!-- 数据权限过滤（@DataScope 生成：仅本人= c.sales_user_id=当前用户；本部门= su.dept_id=当前用户部门） -->
             ${params.dataScope}
         </where>
@@ -253,7 +253,7 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
             <if test="weightThreshold != null">weight_threshold,</if>
             <if test="throwRatio != null">throw_ratio,</if>
             <if test="creditEd != null">credit_ed,</if>
-            <if test="productIds != null">product_ids,</if>
+            <if test="productCodes != null">product_codes,</if>
             <if test="remark != null">remark,</if>
             <if test="createBy != null">create_by,</if>
             <if test="createTime != null">create_time,</if>
@@ -283,7 +283,7 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
             <if test="weightThreshold != null">#{weightThreshold},</if>
             <if test="throwRatio != null">#{throwRatio},</if>
             <if test="creditEd != null">#{creditEd},</if>
-            <if test="productIds != null">#{productIds},</if>
+            <if test="productCodes != null">#{productCodes},</if>
             <if test="remark != null">#{remark},</if>
             <if test="createBy != null">#{createBy},</if>
             <if test="createTime != null">#{createTime},</if>
@@ -315,7 +315,7 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
             <if test="foreignCurrencyBalance != null">foreign_currency_balance = #{foreignCurrencyBalance},</if>
             <if test="weightThreshold != null">weight_threshold = #{weightThreshold},</if>
             <if test="throwRatio != null">throw_ratio = #{throwRatio},</if>
-            <if test="productIds != null">product_ids = #{productIds},</if>
+            <if test="productCodes != null">product_codes = #{productCodes},</if>
             <if test="remark != null">remark = #{remark},</if>
             <if test="createBy != null">create_by = #{createBy},</if>
             <if test="createTime != null">create_time = #{createTime},</if>
diff --git a/bms-back/sql/customer+supplier/customer.sql b/bms-back/sql/customer+supplier/customer.sql
index 07bc1819..eec22df1 100644
--- a/bms-back/sql/customer+supplier/customer.sql
+++ b/bms-back/sql/customer+supplier/customer.sql
@@ -29,7 +29,7 @@ CREATE TABLE `bms_customer` (
     `weight_threshold`    decimal(15,2)   DEFAULT 0.00            COMMENT '重量阈值（kg）',
     `throw_ratio`       decimal(15,2)   DEFAULT 0.00            COMMENT '抛比（%）',
     `credit_ed`         decimal(15,2)   DEFAULT 0.00            COMMENT '信用额度（元）',
-    `product_ids`       varchar(1000)   DEFAULT NULL            COMMENT '绑定产品ID（多个产品ID用逗号分隔，支持批量操作）',
+    `product_codes`     varchar(1000)   DEFAULT NULL            COMMENT '绑定产品代码（多个产品代码用逗号分隔，对接旧库产品编码）',
 
     -- ========== 附件字段（新增） ==========
     `logo_oss_id`       bigint(20)      DEFAULT NULL            COMMENT '客户Logo（图片，关联sys_oss.oss_id）',
diff --git a/bms-back/sql/customer+supplier/customer_product_codes.sql b/bms-back/sql/customer+supplier/customer_product_codes.sql
new file mode 100644
index 00000000..15fb3536
--- /dev/null
+++ b/bms-back/sql/customer+supplier/customer_product_codes.sql
@@ -0,0 +1,23 @@
+-- =====================================================================
+-- 客户绑定产品：存储口径由「产品ID逗号串」改为「产品代码逗号串」
+-- 背景：后续产品数据从旧数据库迁移导入，新旧库产品ID不一致，
+--       产品代码（product_code）在两库间稳定，故客户绑定关系改用代码。
+-- 日期：2026-09-22
+-- =====================================================================
+
+-- 1. 列改名（保留原数据，CHANGE 仅改列名/注释）
+ALTER TABLE bms_customer
+    CHANGE COLUMN product_ids product_codes varchar(1000) DEFAULT NULL
+        COMMENT '绑定产品代码（多个产品代码用逗号分隔，对接旧库产品编码）';
+
+-- 2. 旧值（产品ID逗号串）按 bms_product 映射为产品代码逗号串
+--    FIND_IN_SET 逐个匹配逗号串中的ID，GROUP_CONCAT 重新拼为代码串；
+--    匹配不到产品的ID会被置为NULL（脏数据，可在客户编辑页重新绑定）
+UPDATE bms_customer c
+SET c.product_codes = (
+        SELECT GROUP_CONCAT(p.product_code)
+        FROM bms_product p
+        WHERE FIND_IN_SET(p.product_id, c.product_codes)
+    )
+WHERE c.product_codes IS NOT NULL
+  AND c.product_codes <> '';
diff --git a/bms-front/src/components/ProductSelect/index.vue b/bms-front/src/components/ProductSelect/index.vue
index fcfaf979..a92d257a 100644
--- a/bms-front/src/components/ProductSelect/index.vue
+++ b/bms-front/src/components/ProductSelect/index.vue
@@ -1,11 +1,11 @@
 <template>
   <div class="product-select">
     <el-button type="primary" plain icon="Connection" @click="openDialog">
-      {{ selectedIds.length ? '重新选择产品' : '选择产品' }}
+      {{ selectedCodes.length ? '重新选择产品' : '选择产品' }}
     </el-button>
     <span class="ps-summary">
-      已绑定 <b>{{ selectedIds.length }}</b> 个产品
-      <el-button v-if="selectedIds.length" link type="danger" @click="clearSelection">清空</el-button>
+      已绑定 <b>{{ selectedCodes.length }}</b> 个产品
+      <el-button v-if="selectedCodes.length" link type="danger" @click="clearSelection">清空</el-button>
     </span>
 
     <el-dialog
@@ -46,7 +46,7 @@
         ref="tableRef"
         v-loading="loading"
         :data="filteredList"
-        row-key="productId"
+        row-key="productCode"
         height="380"
         border
         @select="handleSelect"
@@ -74,7 +74,7 @@
 
       <template #footer>
         <div class="ps-footer">
-          <span>已选 <b>{{ draftIds.size }}</b> 个产品</span>
+          <span>已选 <b>{{ draftCodes.size }}</b> 个产品</span>
           <div>
             <el-button @click="dialogVisible = false">取消</el-button>
             <el-button type="primary" @click="confirmSelection">确定</el-button>
@@ -90,7 +90,7 @@ import { ref, reactive, computed, watch, nextTick } from 'vue'
 import { useProducts } from './useProducts'
 
 const props = defineProps({
-  /** v-model 绑定值：逗号分隔的产品ID串，如 "3,6" */
+  /** v-model 绑定值：逗号分隔的产品代码串，如 "WSP011,WSP037" */
   modelValue: { type: [String, Number], default: '' }
 })
 const emit = defineEmits(['update:modelValue', 'change'])
@@ -100,7 +100,7 @@ const { productList, ensureProducts } = useProducts()
 const dialogVisible = ref(false)
 const loading = ref(false)
 const tableRef = ref(null)
-const draftIds = reactive(new Set())
+const draftCodes = reactive(new Set())
 const queryParams = reactive({
   productCode: '',
   productName: '',
@@ -109,7 +109,7 @@ const queryParams = reactive({
   status: ''
 })
 
-const selectedIds = computed(() =>
+const selectedCodes = computed(() =>
   String(props.modelValue || '').split(',').map(s => s.trim()).filter(Boolean)
 )
 
@@ -133,21 +133,21 @@ function openDialog() {
 
 function handleOpen() {
   loading.value = true
-  draftIds.clear()
-  selectedIds.value.forEach(id => draftIds.add(id))
+  draftCodes.clear()
+  selectedCodes.value.forEach(code => draftCodes.add(code))
   resetQuery(false)
-  // 拉取最新产品后，按 draftIds 全量同步一次勾选（覆盖上次弹窗遗留状态）
+  // 拉取最新产品后，按 draftCodes 全量同步一次勾选（覆盖上次弹窗遗留状态）
   ensureProducts(true).finally(() => {
     loading.value = false
     nextTick(syncSelection)
   })
 }
 
-/** 按 draftIds 同步当前渲染行的勾选状态（draftIds 为唯一数据源，筛选切换不丢选择） */
+/** 按 draftCodes 同步当前渲染行的勾选状态（draftCodes 为唯一数据源，筛选切换不丢选择） */
 function syncSelection() {
   if (!tableRef.value) return
   filteredList.value.forEach(row => {
-    tableRef.value.toggleRowSelection(row, draftIds.has(String(row.productId)))
+    tableRef.value.toggleRowSelection(row, draftCodes.has(String(row.productCode)))
   })
 }
 
@@ -158,17 +158,17 @@ watch(filteredList, () => {
 }, { flush: 'post' })
 
 function handleSelect(selection, row) {
-  const id = String(row.productId)
-  if (draftIds.has(id)) draftIds.delete(id)
-  else draftIds.add(id)
+  const code = String(row.productCode)
+  if (draftCodes.has(code)) draftCodes.delete(code)
+  else draftCodes.add(code)
 }
 
 function handleSelectAll(selection) {
   // selection 为当前过滤后页面被选中的行；长度>0 表示全选，否则取消全选
   if (selection.length) {
-    filteredList.value.forEach(row => draftIds.add(String(row.productId)))
+    filteredList.value.forEach(row => draftCodes.add(String(row.productCode)))
   } else {
-    filteredList.value.forEach(row => draftIds.delete(String(row.productId)))
+    filteredList.value.forEach(row => draftCodes.delete(String(row.productCode)))
   }
 }
 
@@ -186,10 +186,10 @@ function resetQuery(reload = true) {
 }
 
 function confirmSelection() {
-  const ids = Array.from(draftIds)
-  const value = ids.join(',')
+  const codes = Array.from(draftCodes)
+  const value = codes.join(',')
   emit('update:modelValue', value)
-  emit('change', ids)
+  emit('change', codes)
   dialogVisible.value = false
 }
 
diff --git a/bms-front/src/components/ProductSelect/useProducts.js b/bms-front/src/components/ProductSelect/useProducts.js
index 03b7e06b..0e0ca30f 100644
--- a/bms-front/src/components/ProductSelect/useProducts.js
+++ b/bms-front/src/components/ProductSelect/useProducts.js
@@ -4,23 +4,26 @@ import { listProduct } from '@/api/price/product'
 /**
  * 产品列表模块级共享缓存：全应用只拉取一次
  * 用于客户绑定产品的选择与已绑产品名称/明细回显
+ *
+ * 口径说明：客户绑定关系统一存「产品代码 productCode」逗号串，
+ * 不存产品ID——后续产品从旧库迁移导入时新旧库ID不一致，产品代码两库稳定。
  */
 const productList = ref([])
 let loadingPromise = null
 
-/** 逗号分隔 id 串 -> 字符串 id 数组 */
-export function parseProductIds(value) {
+/** 逗号分隔 code 串 -> 字符串 code 数组 */
+export function parseProductCodes(value) {
   if (Array.isArray(value)) return value.map(v => String(v)).filter(Boolean)
   if (value === null || value === undefined) return []
   return String(value).split(',').map(s => s.trim()).filter(Boolean)
 }
 
-/** id 数组 -> 逗号分隔串（去重，保持原顺序） */
-export function joinProductIds(ids) {
+/** code 数组 -> 逗号分隔串（去重，保持原顺序） */
+export function joinProductCodes(codes) {
   const seen = new Set()
   const out = []
-  ;(ids || []).forEach(id => {
-    const key = String(id)
+  ;(codes || []).forEach(code => {
+    const key = String(code)
     if (key && !seen.has(key)) {
       seen.add(key)
       out.push(key)
@@ -45,16 +48,17 @@ export function useProducts() {
     return loadingPromise
   }
 
-  /** 按产品ID查产品对象 */
-  function findProduct(productId) {
-    if (productId === null || productId === undefined || productId === '') return null
-    return productList.value.find(p => String(p.productId) === String(productId)) || null
+  /** 按产品代码查产品对象 */
+  function findProduct(productCode) {
+    if (productCode === null || productCode === undefined || productCode === '') return null
+    const code = String(productCode).trim()
+    return productList.value.find(p => String(p.productCode) === code) || null
   }
 
-  /** 产品展示名：代码 + 名称 */
-  function getProductLabel(productId) {
-    const p = findProduct(productId)
-    if (!p) return String(productId)
+  /** 产品展示名：代码 + 名称；查不到的产品回显原代码（旧库数据/已删除产品不致空白） */
+  function getProductLabel(productCode) {
+    const p = findProduct(productCode)
+    if (!p) return String(productCode)
     return p.productCode + ' ' + p.productName
   }
 
diff --git a/bms-front/src/views/customersuppliermanagement/customerinfo/customeredit/index.vue b/bms-front/src/views/customersuppliermanagement/customerinfo/customeredit/index.vue
index 84224517..971b1949 100644
--- a/bms-front/src/views/customersuppliermanagement/customerinfo/customeredit/index.vue
+++ b/bms-front/src/views/customersuppliermanagement/customerinfo/customeredit/index.vue
@@ -168,8 +168,8 @@
         <!-- ============ 绑定产品 ============ -->
         <el-tab-pane label="绑定产品" name="product">
           <div class="pane-toolbar">
-            <product-select v-model="form.productIds" />
-            <span class="pane-tip">绑定结果以产品ID逗号串存入客户主表 product_ids，仅用于产品对接映射</span>
+            <product-select v-model="form.productCodes" />
+            <span class="pane-tip">绑定结果以产品代码逗号串存入客户主表 product_codes，产品代码在新旧库间稳定，用于产品对接映射</span>
           </div>
           <el-table :data="boundProducts" border size="small" class="bound-table">
             <el-table-column label="序号" type="index" width="55" align="center" />
@@ -192,7 +192,7 @@
             <el-table-column label="生效日期" prop="effectiveDate" width="110" align="center" />
             <el-table-column label="操作" width="90" align="center">
               <template #default="{ row }">
-                <el-button link type="danger" size="small" @click="removeProduct(row.productId)">移除</el-button>
+                <el-button link type="danger" size="small" @click="removeProduct(row.productCode)">移除</el-button>
               </template>
             </el-table-column>
             <template #empty>
@@ -725,7 +725,7 @@ import {
 import { getToken } from '@/utils/auth'
 import axios from 'axios'
 import { saveAs } from 'file-saver'
-import { useProducts, parseProductIds } from '@/components/ProductSelect/useProducts'
+import { useProducts, parseProductCodes } from '@/components/ProductSelect/useProducts'
 
 const { proxy } = getCurrentInstance()
 const route = useRoute()
@@ -773,7 +773,7 @@ function buildEmptyForm() {
     weightThreshold: null,
     throwRatio: null,
     creditEd: 0,
-    productIds: null,
+    productCodes: null,
     attachmentList: [],
     companyList: [],
     contactList: [],
@@ -788,14 +788,14 @@ const productStatusMap = { 0: '待生效', 1: '已生效', 2: '已失效' }
 const productStatusTagType = { 0: 'info', 1: 'success', 2: 'danger' }
 
 const boundProducts = computed(() =>
-  parseProductIds(form.value.productIds)
-    .map(id => findProduct(id))
+  parseProductCodes(form.value.productCodes)
+    .map(code => findProduct(code))
     .filter(Boolean)
 )
 
-function removeProduct(productId) {
-  const ids = parseProductIds(form.value.productIds).filter(id => id !== String(productId))
-  form.value.productIds = ids.join(',')
+function removeProduct(productCode) {
+  const codes = parseProductCodes(form.value.productCodes).filter(code => code !== String(productCode))
+  form.value.productCodes = codes.join(',')
 }
 
 /* ---------------- 套餐绑定（prc_customer_price_set，一客户一套餐） ---------------- */
diff --git a/bms-front/src/views/customersuppliermanagement/customerinfo/index.vue b/bms-front/src/views/customersuppliermanagement/customerinfo/index.vue
index 962fd4b0..2511deab 100644
--- a/bms-front/src/views/customersuppliermanagement/customerinfo/index.vue
+++ b/bms-front/src/views/customersuppliermanagement/customerinfo/index.vue
@@ -167,10 +167,10 @@
           <span v-else>{{ scope.row.creditEd }}</span>
         </template>
       </el-table-column>
-      <el-table-column v-if="isColVisible('productIds')" label="绑定产品" align="center" prop="productIds" min-width="180">
+      <el-table-column v-if="isColVisible('productCodes')" label="绑定产品" align="center" prop="productCodes" min-width="180">
         <template #default="scope">
-          <span v-if="productNames(scope.row.productIds)" :title="productNames(scope.row.productIds)">
-            {{ productNames(scope.row.productIds) }}
+          <span v-if="productNames(scope.row.productCodes)" :title="productNames(scope.row.productCodes)">
+            {{ productNames(scope.row.productCodes) }}
           </span>
           <span v-else>-</span>
         </template>
@@ -198,7 +198,7 @@
 
 <script setup name="Customer">
 import { listCustomer, delCustomer } from "@/api/customersuppliermanagement/customerinfo/customer.js"
-import { useProducts, parseProductIds } from '@/components/ProductSelect/useProducts'
+import { useProducts, parseProductCodes } from '@/components/ProductSelect/useProducts'
 import { useColumnSettings } from '@/utils/columnSettings'
 
 const { proxy } = getCurrentInstance()
@@ -222,7 +222,7 @@ const columnDefs = [
   { key: 'weightThreshold', label: '重量阈值' },
   { key: 'throwRatio', label: '抛比' },
   { key: 'creditEd', label: '信用额度' },
-  { key: 'productIds', label: '绑定产品' },
+  { key: 'productCodes', label: '绑定产品' },
   { key: 'remark', label: '备注说明' }
 ]
 const { colVisible, isColVisible, toggleColumn, resetColumns } = useColumnSettings('customer-info-list', columnDefs)
@@ -237,10 +237,10 @@ const total = ref(0)
 
 const { sys_normal_disable, settlement_type, customer_type } = useDict("sys_normal_disable", "settlement_type", "customer_type")
 
-/** 绑定产品ID串 -> 产品名称展示（产品代码+名称；查不到的产品回显原ID） */
+/** 绑定产品代码串 -> 产品名称展示（产品代码+名称；查不到的产品回显原代码） */
 const { ensureProducts, getProductLabel } = useProducts()
-function productNames(productIds) {
-  return parseProductIds(productIds).map(id => getProductLabel(id)).join('，')
+function productNames(productCodes) {
+  return parseProductCodes(productCodes).map(code => getProductLabel(code)).join('，')
 }
 ensureProducts()
 
@@ -275,7 +275,7 @@ const data = reactive({
     weightThreshold: undefined,
     throwRatio: undefined,
     creditEd: undefined,
-    productIds: undefined,
+    productCodes: undefined,
   }
 })