I was invited to give a keynote speech in "The Conference on Application and Achievements for Lifecycle in Engineering Projects based on BIM". The topic was "Research on Key Technologies of BIM Application in MEP Projects". Aming at MEP Projects, the presentation introduced the definitions, processes and optimizations of the information model, the development of application system in the design, construction, operation and maintenance phases, as well as the application of specific engineering projects, and the application status and development trances of BIM-based technology in MEP projects. The Conference was sponsored by Smart Building Network and co-sponsored by the China Construction First Bureau Co., Ltd.