In recent years,with the wide application of technologies such as big data,artificial intelligence,digital twins and microservices,the integration application based on urban intelligence has become the mainstream direction of the construction of new smart cities,and has driven a large number of application scenarios typical of"one network office""one network management"and"one network cooperation"to be implemented in various places.By designing the architecture of"eight core,four energy and N scene"of urban intelligence,this paper makes full use of the combination of new generation information technology and cross-department business,and conducts in-depth research on 8 typical application scenarios based on urban intelligence.