Make China´s cities be full of intelligent

Digital City is an integral part of Digital Earth, in this paper, we studied the problems of China´s urban development has practical significance. In this article, we believe that to develop a wisdom digital city unified information platform is an effective way to improve the scientific planning, high level and efficient management of the urban development process; China has conditions and strength to issue an “intelligent” digital city unified information platform from industry background, technical background, information security and human resource reserve; China´s urban construction and management became wisdom with the help of the development of sensor networks and IOT(internet of things); and we put forward of the Digital City Unified Information Platform development Mechanism in China: To establish an IOT Technology, RFID Technology, GIS Technology and Information Security Technology and develop a Digital City unified information platform mechanism which has independent intellectual property rights to make China´s urban management be more scientific and efficient.