diff --git a/inventory-backend/app/services/inbound/base_service.py b/inventory-backend/app/services/inbound/base_service.py
index 7ffe345..a1f9fc6 100644
--- a/inventory-backend/app/services/inbound/base_service.py
+++ b/inventory-backend/app/services/inbound/base_service.py
@@ -593,6 +593,31 @@ class MaterialBaseService:
                 material.is_enabled = str(raw_enabled).lower() in ['1', 'true', 'yes', 't']
 
             db.session.commit()
+
+            # ★★★ 级联缓存失效：物料信息变更后，清除所有涉及该物料的 BOM 树缓存
+            try:
+                from app.models.bom import BomTable
+                from app.extensions import redis_client
+
+                # 查出所有以该物料为父件或子件的 bom_no（去重）
+                affected = db.session.query(BomTable.bom_no).filter(
+                    or_(BomTable.parent_id == m_id, BomTable.child_id == m_id)
+                ).distinct().all()
+                affected_bom_nos = [r[0] for r in affected]
+
+                if affected_bom_nos:
+                    for bom_no in affected_bom_nos:
+                        # 清除最新版缓存
+                        redis_client.delete(f'bom:tree:{bom_no}')
+                        # 清除所有版本缓存（通配符）
+                        for key in redis_client.scan_iter(f'bom:tree:{bom_no}:*'):
+                            redis_client.delete(key)
+                    print(f"🔁 物料 {m_id} 变更，已级联清除 {len(affected_bom_nos)} 个 BOM 缓存: {affected_bom_nos}")
+
+            except Exception as cache_err:
+                # Redis 报错不阻断业务返回
+                print(f"⚠️ BOM 缓存级联清除失败（不阻断业务）: {cache_err}")
+
             return material
 
         except Exception as e: