】知识共享和重用是解决知识危机和软件危机的重要而有效的技术，是知识工程、人工智能和信息系统中的重要研究内容．本文介绍该技术在建立分布式协同智能决策支持系统的知识系统及其知识库模型方面的应用，详细描述了基于知识共享和重用技术的ＤＣＩＤＰ的体系结构、构件库模型及其实现和基于本体论的知识库模型及其实现，其方法和成果具有普遍意义 Knowledge sharing and reuse is an important and effective technology to solve knowledge crisis and software crisis. It is an important research content in knowledge engineering, artificial intelligence and information system. This paper introduces the application of this technology in building a knowledge system and its knowledge base model of distributed collaborative intelligent decision support system. It describes in detail the architecture of DCIDP based on knowledge sharing and reusability, component library model and its implementation and ontology Knowledge base model and its implementation, its methods and results have universal significance