diff --git a/inventory-backend/app/api/v1/bom.py b/inventory-backend/app/api/v1/bom.py
index b867440..6b29d7f 100644
--- a/inventory-backend/app/api/v1/bom.py
+++ b/inventory-backend/app/api/v1/bom.py
@@ -198,9 +198,10 @@ def save_bom():
 @jwt_required()
 @permission_required('bom_manage')
 def get_bom_with_stock_by_no(bom_no):
-    """根据 BOM 编号获取配方详情及库存信息"""
+    """根据 BOM 编号 (和可选 version) 获取配方详情及库存信息"""
     try:
-        data = BomService.get_bom_with_stock_by_bom_no(bom_no)
+        version = request.args.get('version')
+        data = BomService.get_bom_with_stock_by_bom_no(bom_no, version=version)
         if not data:
             return jsonify({'code': 404, 'msg': 'BOM 不存在'}), 404
         # 字段级脱敏
diff --git a/inventory-backend/app/services/bom_service.py b/inventory-backend/app/services/bom_service.py
index d6e0cf0..f556103 100644
--- a/inventory-backend/app/services/bom_service.py
+++ b/inventory-backend/app/services/bom_service.py
@@ -422,11 +422,11 @@ class BomService:
         return bom_no
 
     @staticmethod
-    def get_bom_with_stock_by_bom_no(bom_no):
+    def get_bom_with_stock_by_bom_no(bom_no, version=None):
         """
-        根据 bom_no 获取配方详情，并计算（已修复 N+1 性能问题）
+        根据 bom_no (和可选 version) 获取配方详情，并计算（已修复 N+1 性能问题）
         """
-        detail = BomService.get_bom_detail(bom_no)
+        detail = BomService.get_bom_detail(bom_no, version=version)
         if not detail or not detail.get('children'):
             return detail
 
diff --git a/inventory-web/src/api/bom.ts b/inventory-web/src/api/bom.ts
index efa1b00..82c06af 100644
--- a/inventory-web/src/api/bom.ts
+++ b/inventory-web/src/api/bom.ts
@@ -19,12 +19,13 @@ export function getBomSummary(params?: { keyword?: string }) {
 }
 
 // 获取BOM详情（含库存信息）
-export function getBomWithStock(bomNo: string) {
+export function getBomWithStock(bomNo: string, version?: string) {
     const trimmed = bomNo.replace(/^\/+|\/+$/g, '');
     const encoded = encodeURIComponent(trimmed);
     return request({
         url: `/v1/bom/stock/${encoded}`,
-        method: 'get'
+        method: 'get',
+        params: version ? { version } : {}
     })
 }