Abstract:The smart city is a newest stage in the urbanization development history. The term of smart city and smart city’s construction have been the world focus including China since the IBM Report of 2008. Firstly, the smart city’s construction is the reflection of the times and the concrete implementation about knowledge and information promoting industrialization, urbanization, and agricultural modernization. Secondly, the smart city’s construction is a new platform to realize innovation driven, to reform industrial upgrading, and to perform the full play of wealth in the twenty-first century. Thirdly, the smart city’s construction is the intrinsic motivation supporting and promoting the modern social structure, social organization, and social efficiency. Fourthly, the smart city’s construction is a comprehensive update of city’s production, circulation, and consumption field related to the“digital management of natural capital, production cost, human resources, and social serves”in a city. Then, the smart city’s construction is to realize the historical mission of sustainable development, green development, environmental management, and the ecological civilization. Finally, the smart city’s construction is also the city’s system engineering including“production, circulation, consumption”,“management, happiness,life quality”, and“green, ecology, civilization”in the omni-direction and multi-level.