首先对当前企业综合自动化的发展方向和具代表性的过程控制系统进行了简要的介绍，而后着重讨论了工业控制计算机技术、数据通信及网络技术的应用情况，最后提出了当前构建企业综合信息网的可行解决方案。关键词：过程控制；现场总线；工业控制计算机；Internet；企业综合信息网Abstract: At first, the development direction of the automation to the current business enterprise with have the representative process control system proceeded the introduction, Then discuss the application for industry control calculator technique、data communication and networks technical. Finally, propose a method of setting up the business enterprise synthesizes information net.Keywords: process control；fieldbus；industry control calculator(IPC)；Internet； the business enterprise synthesizes information net