diff --git a/inventory-web/src/components/WarehouseSelector.vue b/inventory-web/src/components/WarehouseSelector.vue
index ced5383..52b2de2 100644
--- a/inventory-web/src/components/WarehouseSelector.vue
+++ b/inventory-web/src/components/WarehouseSelector.vue
@@ -56,12 +56,12 @@
 
         <!-- 列表展示区 -->
         <div class="selector-body">
-          <div v-if="currentList.length === 0" class="empty-tip">
+          <div v-if="displayList.length === 0" class="empty-tip">
             当前层级无库位数据
           </div>
           <ul v-else class="location-list">
             <li
-              v-for="item in currentList"
+              v-for="item in displayList"
               :key="item.id"
               class="location-item"
               :class="{ 'is-selected': item.full_path === modelValue }"
@@ -119,10 +119,13 @@ interface WarehouseItem {
 
 interface Props {
   modelValue?: string
+  // 顶层库位白名单前缀：仅显示 name 以这些前缀开头的顶层节点（空数组 = 全部）
+  allowedTopPrefixes?: string[]
 }
 
 const props = withDefaults(defineProps<Props>(), {
-  modelValue: ''
+  modelValue: '',
+  allowedTopPrefixes: () => []
 })
 
 const emit = defineEmits<{
@@ -159,6 +162,15 @@ const currentParentId = computed<number | null>(() => {
 // 当前显示的列表（懒加载缓存）
 const currentList = computed<WarehouseItem[]>(() => cache[currentParentKey.value] || [])
 
+// 顶层按公司白名单前缀过滤后的显示列表（响应式：切换物料公司时实时变化）
+const displayList = computed<WarehouseItem[]>(() => {
+  const list = currentList.value
+  if (currentParentKey.value === 'root' && props.allowedTopPrefixes.length > 0) {
+    return list.filter((item) => props.allowedTopPrefixes.some((p) => item.name.startsWith(p)))
+  }
+  return list
+})
+
 // 懒加载某层子节点（已缓存则跳过）
 const ensureLoaded = async (key: string, parentId: number | null) => {
   if (cache[key]) return
diff --git a/inventory-web/src/utils/warehouseCompany.ts b/inventory-web/src/utils/warehouseCompany.ts
new file mode 100644
index 0000000..d0201bd
--- /dev/null
+++ b/inventory-web/src/utils/warehouseCompany.ts
@@ -0,0 +1,22 @@
+/**
+ * 公司 → 允许选择的库位顶层前缀（白名单）
+ *
+ * - 匹配到公司：顶层库位只显示 name 以这些前缀开头的节点（其子级随顶层隐藏不可达）
+ * - 未配置的公司 / 空数组：显示全部库位
+ *
+ * 如需调整规则（新增公司/改前缀），只需改这张表，无需改动组件。
+ */
+export const COMPANY_WAREHOUSE_PREFIXES: Record<string, string[]> = {
+  // IRIS 仅显示 Y 开头（Y1~Y8）
+  IRIS: ['Y'],
+  // LICA 隐藏 Y，显示 C / L 开头
+  LICA: ['C', 'L'],
+}
+
+/**
+ * 根据公司名取允许的库位顶层前缀（未配置返回空数组 = 不过滤）
+ */
+export function getAllowedLocPrefixes(companyName?: string | null): string[] {
+  if (!companyName) return []
+  return COMPANY_WAREHOUSE_PREFIXES[companyName] || []
+}
diff --git a/inventory-web/src/views/stock/inbound/buy.vue b/inventory-web/src/views/stock/inbound/buy.vue
index 0ef4860..4fb0b34 100644
--- a/inventory-web/src/views/stock/inbound/buy.vue
+++ b/inventory-web/src/views/stock/inbound/buy.vue
@@ -384,7 +384,7 @@
                 </el-col>
                 <el-col :span="6">
                   <el-form-item label="库位" prop="warehouse_location">
-                    <WarehouseSelector v-model="form.warehouse_location" />
+                    <WarehouseSelector v-model="form.warehouse_location" :allowed-top-prefixes="allowedLocPrefixes" />
                   </el-form-item>
                 </el-col>
               </el-row>
@@ -806,6 +806,7 @@ import {getLabelPreview, executePrint} from '@/api/common/print'
 import { usePasteUpload } from '@/hooks/usePasteUpload'
 import WebRtcCamera from '@/components/Camera/WebRtcCamera.vue'
 import WarehouseSelector from '@/components/WarehouseSelector.vue'
+import { getAllowedLocPrefixes } from '@/utils/warehouseCompany'
 import SmartScannerDialog from '@/components/SmartScannerDialog.vue'
 import { useUserStore } from '@/stores/user'
 
@@ -1166,6 +1167,9 @@ const handleCheckAllChange = (val: boolean) => {
   }
 };
 
+// 按物料公司限制可选库位顶层前缀（IRIS→Y，LICA→C/L，未配置→全部）
+const allowedLocPrefixes = computed(() => getAllowedLocPrefixes(form.company_name))
+
 const form = reactive({
   id: undefined, base_id: undefined as number | undefined,
   company_name: '',
diff --git a/inventory-web/src/views/stock/inbound/product.vue b/inventory-web/src/views/stock/inbound/product.vue
index d8c72ea..7e085b4 100644
--- a/inventory-web/src/views/stock/inbound/product.vue
+++ b/inventory-web/src/views/stock/inbound/product.vue
@@ -354,7 +354,7 @@
               <el-row :gutter="24">
                 <el-col :span="6"><el-form-item label="SKU" prop="sku"><el-input v-model="form.sku" placeholder="自动生成" disabled /></el-form-item></el-col>
                 <el-col :span="6"><el-form-item label="库位" prop="warehouse_location">
-                  <WarehouseSelector v-model="form.warehouse_location" />
+                  <WarehouseSelector v-model="form.warehouse_location" :allowed-top-prefixes="allowedLocPrefixes" />
                 </el-form-item></el-col>
                 <el-col :span="6"><el-form-item label="入库日期"><el-date-picker v-model="form.in_date" type="date" value-format="YYYY-MM-DD" style="width:100%" disabled /></el-form-item></el-col>
               </el-row>
@@ -614,6 +614,7 @@ import {
 import { uploadFile, deleteFile } from '@/api/inbound/buy'
 import WebRtcCamera from '@/components/Camera/WebRtcCamera.vue'
 import WarehouseSelector from '@/components/WarehouseSelector.vue'
+import { getAllowedLocPrefixes } from '@/utils/warehouseCompany'
 import SmartScannerDialog from '@/components/SmartScannerDialog.vue'
 import TrackScanDialog from '@/components/TrackScanDialog.vue'
 import { getLabelPreview, executePrint } from '@/api/common/print'
@@ -929,6 +930,9 @@ const displayData = computed(() => {
 
 const defaultVisibleCols = ['company_name', 'material_name', 'sku', 'warehouse_loc', 'serial_number', 'in_quantity', 'stock_quantity', 'available_quantity', 'status', 'quality_status', 'product_photo', 'sale_price', 'order_id']
 
+// 按物料公司限制可选库位顶层前缀（IRIS→Y，LICA→C/L，未配置→全部）
+const allowedLocPrefixes = computed(() => getAllowedLocPrefixes(form.company_name))
+
 const form = reactive({
   id: undefined, base_id: undefined as number | undefined,
   company_name: '', // [新增]
diff --git a/inventory-web/src/views/stock/inbound/semi.vue b/inventory-web/src/views/stock/inbound/semi.vue
index 44469d8..3fbc539 100644
--- a/inventory-web/src/views/stock/inbound/semi.vue
+++ b/inventory-web/src/views/stock/inbound/semi.vue
@@ -393,7 +393,7 @@
                 <el-col :span="6"><el-form-item label="编码/SKU" prop="sku"><el-input v-model="form.sku" placeholder="系统自动生成" disabled/></el-form-item></el-col>
                 <el-col :span="6"><el-form-item label="入库日期" prop="in_date"><el-date-picker v-model="form.in_date" type="date" value-format="YYYY-MM-DD" style="width:100%" disabled/></el-form-item></el-col>
                 <el-col :span="6"><el-form-item label="库位" prop="warehouse_location">
-                  <WarehouseSelector v-model="form.warehouse_location" />
+                  <WarehouseSelector v-model="form.warehouse_location" :allowed-top-prefixes="allowedLocPrefixes" />
                 </el-form-item></el-col>
               </el-row>
 
@@ -658,6 +658,7 @@ import {
 import { uploadFile, deleteFile } from '@/api/inbound/buy'
 import WebRtcCamera from '@/components/Camera/WebRtcCamera.vue'
 import WarehouseSelector from '@/components/WarehouseSelector.vue'
+import { getAllowedLocPrefixes } from '@/utils/warehouseCompany'
 import SmartScannerDialog from '@/components/SmartScannerDialog.vue'
 import TrackScanDialog from '@/components/TrackScanDialog.vue'
 import {getLabelPreview, executePrint} from '@/api/common/print'
@@ -973,6 +974,9 @@ const handleCheckAllChange = (val: boolean) => {
 
 const defaultColumns = ['company_name', 'material_name', 'spec_model', 'unit', 'inbound_date', 'sn_bn', 'status', 'quality_status', 'bom_code', 'work_order_code', 'stock_quantity', 'available_quantity', 'unit_total_cost', 'arrival_photo', 'quality_report_link']
 
+// 按物料公司限制可选库位顶层前缀（IRIS→Y，LICA→C/L，未配置→全部）
+const allowedLocPrefixes = computed(() => getAllowedLocPrefixes(form.company_name))
+
 const form = reactive({
   id: undefined, base_id: undefined as number | undefined,
   company_name: '',