本文以圆钢采购为例，阐述保证市场采购造船材料质量的经验，认为增加复试频数，不失为一种控制质量的方法，但最有效的对策是将质量控制延伸到材料供方。 This article takes the round steel procurement as an example to explain the experience of ensuring the quality of materials purchased by the market for shipbuilding. It is believed that increasing retest frequency is a quality control method, but the most effective countermeasure is to extend quality control to the material supplier.