PDM(Product Data Management)技术自从提出至今 ,在不同的行业都得到了广泛的应用。随着网络技术的日新月异 ,尤其是 WEB技术的出现 ,为 PDM技术的发展提供了新的方向。本文从 PDM技术中的关键技术—产品结构管理 (Product Structure Management,PSM)的概念出发 ,阐述了产品结构管理的若干关键技术 ,提出了基于WEB的 PSM系统的解决方案 PDM (Product Data Management) technology has been widely used in different industries since it was proposed. With the ever-changing network technology, especially the emergence of WEB technology, provides a new direction for the development of PDM technology. Based on the concept of Product Structure Management (PSM), a key technology in PDM technology, this paper describes some key technologies of product structure management and puts forward the solution of PSM system based on WEB