本文提出了产品设计知识的本体表达方法，研究了使用protégé 构建产品设计知识库的原理；并利用Jena 开发了实现语义搜索的产品设计知识管理的软件模型。通过以上方式，开发产品设计知识管理系统，促进产品设计知识的共享与重用。关键词：产品设计知识,本体，Protégé ,JenaAbstract: The paper studied method of the representation of product design knowledge, introducted the construction principles of product design knowledge base using protégé. Then developed a knowledge acquisition software model using Jena. The methodology can be implemented for product design knowledge sharing and reuse.Key words: Product design knowledge, ontology, Protégé, Jena