diff --git a/inventory-backend/app/api/v1/outbound.py b/inventory-backend/app/api/v1/outbound.py
index 36b07a5..6f9ccb0 100644
--- a/inventory-backend/app/api/v1/outbound.py
+++ b/inventory-backend/app/api/v1/outbound.py
@@ -215,6 +215,11 @@ def bom_match_stock():
         # 去重
         child_ids = list(set(int(x) for x in child_ids))
 
+        # ★ 行级公司隔离：普通用户只能匹配本公司的库存（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()
+
         from app.models.inbound.buy import StockBuy
         from app.models.inbound.semi import StockSemi
         from app.models.inbound.product import StockProduct
@@ -226,7 +231,10 @@ def bom_match_stock():
         buy_items = StockBuy.query.filter(
             StockBuy.base_id.in_(child_ids),
             StockBuy.stock_quantity > 0
-        ).options(joinedload(StockBuy.base)).all()
+        )
+        if company_limit is not None:
+            buy_items = buy_items.filter(StockBuy.base.has(MaterialBase.company_name == company_limit))
+        buy_items = buy_items.options(joinedload(StockBuy.base)).all()
         for s in buy_items:
             d = s.to_dict()
             d['type'] = 'material'
@@ -242,7 +250,10 @@ def bom_match_stock():
             semi_items = StockSemi.query.filter(
                 StockSemi.base_id.in_(child_ids),
                 StockSemi.stock_quantity > 0
-            ).options(joinedload(StockSemi.base)).all()
+            )
+            if company_limit is not None:
+                semi_items = semi_items.filter(StockSemi.base.has(MaterialBase.company_name == company_limit))
+            semi_items = semi_items.options(joinedload(StockSemi.base)).all()
             for s in semi_items:
                 d = s.to_dict()
                 d['type'] = 'semi'
@@ -260,7 +271,10 @@ def bom_match_stock():
             prod_items = StockProduct.query.filter(
                 StockProduct.base_id.in_(child_ids),
                 StockProduct.stock_quantity > 0
-            ).options(joinedload(StockProduct.base)).all()
+            )
+            if company_limit is not None:
+                prod_items = prod_items.filter(StockProduct.base.has(MaterialBase.company_name == company_limit))
+            prod_items = prod_items.options(joinedload(StockProduct.base)).all()
             for s in prod_items:
                 d = s.to_dict()
                 d['type'] = 'product'