diff --git a/inventory-backend/app/api/v1/bom.py b/inventory-backend/app/api/v1/bom.py
index 6b29d7f..b92462a 100644
--- a/inventory-backend/app/api/v1/bom.py
+++ b/inventory-backend/app/api/v1/bom.py
@@ -357,6 +357,12 @@ def get_material_base_list():
         # 构建查询条件
         query = MaterialBase.query.filter_by(is_enabled=True)
 
+        # ★ 行级公司隔离：普通用户只能选本公司的物料作为 BOM 子件（超管/跨域不受限）
+        from app.utils.decorators import get_current_company_filter
+        company_limit = get_current_company_filter()
+        if company_limit is not None:
+            query = query.filter(MaterialBase.company_name == company_limit)
+
         # 添加关键字模糊搜索
         if keyword:
             query = query.filter(
diff --git a/inventory-backend/app/services/outbound_service.py b/inventory-backend/app/services/outbound_service.py
index a3842f6..56a06b6 100644
--- a/inventory-backend/app/services/outbound_service.py
+++ b/inventory-backend/app/services/outbound_service.py
@@ -58,25 +58,42 @@ class OutboundService:
                 return float(item.pre_tax_unit_price) if item.pre_tax_unit_price else 0
             return 0
 
-        prod = StockProduct.query.filter(
+        # ★ 行级公司隔离：扫码出库/借库只能命中本公司的库存（超管/跨域不受限）
+        from app.utils.decorators import get_current_company_filter
+        from app.models.base import MaterialBase
+        company_limit = get_current_company_filter()
+
+        prod_q = StockProduct.query.filter(
             or_(StockProduct.barcode == clean_code, StockProduct.sku == clean_code)
-        ).first()
+        )
+        if company_limit is not None:
+            prod_q = prod_q.join(MaterialBase, StockProduct.base_id == MaterialBase.id) \
+                           .filter(MaterialBase.company_name == company_limit)
+        prod = prod_q.first()
         if prod:
             res = OutboundService._format_scan_result(prod, 'stock_product')
             res['price'] = get_price(prod, 'stock_product')
             return res
 
-        semi = StockSemi.query.filter(
+        semi_q = StockSemi.query.filter(
             or_(StockSemi.barcode == clean_code, StockSemi.sku == clean_code)
-        ).first()
+        )
+        if company_limit is not None:
+            semi_q = semi_q.join(MaterialBase, StockSemi.base_id == MaterialBase.id) \
+                           .filter(MaterialBase.company_name == company_limit)
+        semi = semi_q.first()
         if semi:
             res = OutboundService._format_scan_result(semi, 'stock_semi')
             res['price'] = 0
             return res
 
-        buy = StockBuy.query.filter(
+        buy_q = StockBuy.query.filter(
             or_(StockBuy.barcode == clean_code, StockBuy.sku == clean_code)
-        ).first()
+        )
+        if company_limit is not None:
+            buy_q = buy_q.join(MaterialBase, StockBuy.base_id == MaterialBase.id) \
+                         .filter(MaterialBase.company_name == company_limit)
+        buy = buy_q.first()
         if buy:
             res = OutboundService._format_scan_result(buy, 'stock_buy')
             res['price'] = get_price(buy, 'stock_buy')