To solve the disadvantages of the recent methods of the realization parts library information models , This article analyzes the relation between PLIB and STEP, and use STEP feature models to realize parts library information models.

• 本文分析了PLIB标准及STEP标准，针对目前PLIB标准中零件库信息模型实现方法的不足之处，将STEP标准与PLIB标准结合，采用STEP标准的方法来实现零件库信息模型，通过STEP特征模型来实现零件库信息模型。