The report of the Nineteenth National Congress of the Communist Party of China points out that China′s economy has changed from a stage of rapid growth to a stage of high-quality development.The new intelligent city is an important carrier for the implementation of "Digital China" landing, and also an important way to implement the high-quality development strategy of new urbanization.Based on the analysis of the historical trend of high-quality development of new-type smart cities, this paper puts forward the strategic idea of using industrial 4.0 thinking to improve the quality of construction and development of new-type smart cities and the method of building modern urban economic system based on "CPS+urban value chain".This paper gives some suggestions that the high-quality development and high-level governance system of new-type intelligent cities in China should start from the three links of the state, industry and enterprise, and puts forward a high-quality development model composed of six dimensions.It holds that the urban governance system should be optimized by means of artificial intelligence, with the breakthrough point of subdividing scenes as the breakthrough point.We will comprehensively upgrade and transform the application fields of new-type smart cities.This paper puts forward the development idea of building a new type of smart urban-rural relationship based on CPS+.It can provide a reference for the government to formulate high-quality development policies for new smart cities and strategies for the development of smart urban-rural integration.It can also provide new methods and ideas for the development of new smart cities at different levels and for the construction of new urban-rural integration relations in the era of "smart+".