Used the advantages of BIM technology and network interconnection, and combined with the demand of the general contracting management, set up the BIM integrated information management platform open to all the contractors. Unified information standards, plus combined with general contracting management mechanism for BIM information flow process, to optimize the public resource scheduling, multi professional collaborative management, production planning, co-ordination and so on. With the improvement of information, networking, intelligent methods and means, targeted at the general contract management, improved the efficiency of management by improving the efficiency of information.