Abstract: Concurrent Engineering (CE) is a systematic approach for product life cycle integration based on the information integration of CIMS. It shortens product lead- time, improves product quality and reduces product cost through organizing multidiscipline product development team, re-engineering product development process and adopting CE oriented computer tools. This paper analyses the essential features and the typical methodology and technology of CE. It points out that CE should balance the four aspects of reforming product development team, defining customer requirements, building development environment, and applying new technology in product development process. Also, automated CE should pass three stages of information integration, process integration and automated decision support. Finally, some examples of CE implementation are introduced and the practical implement action of CE in enterprises is discussed.