New industrial city can promote the development of infrastructure integration in metropolitan area. The operation of the New industrial city is benefit to infrastructure integration in megalopolis：scientific city planning leads to high speed and standard of urban infrastructure construction，efficient allocation of high-end resources promotes the innovation of the system and mechanism for urban and rural integration，perfect supporting services and the high quality of the city can crack the dual structure contradictions and dilemmas between urban and rural areas，the cultivation of industrial clusters breaks regional market fragmentation and constructs the metropolitan circle community of interests.