物料清单（ Bill Of Materials, 缩写 BOM；或译材料清单、用料表、用量表）是为了制造最终产品所使用的文档，内容记载原物料清单、主/副加工流程、各部位明细、半成品与成品数量等信息。通常作为代工双方联系的文档或是公司内部沟通的文档。

依企业需求目的的不同，用料表可细分为设计用的工程料表（ engineering bill of materials）、生产用的制造料表（ manufacturing bill of materials）、接单用的采购料表（ sales bill of materials）……等。

A bill of materials or product structure (sometimes bill of material, BOM or associated list) is a list of the raw materials, sub-assemblies, intermediate assemblies, sub-components, parts and the quantities of each needed to manufacture an end product. A BOM may be used for communication between manufacturing partners, or confined to a single manufacturing plant. A bill of materials is often tied to a production order whose issuance may generate reservations for components in the bill of materials that are in stock and requisitions for components that are not in stock.