In recent years

large-scale access of such emerging load as new distributed generation

electric vehicles and micro-grid into urban distribution network has become a trend.The demand of power consumers for reliability

power quality

service level and other aspects is more diverse.With the wide application of cloud computing

big data

internet of things and mobile internet

urban distribution network is provided with new requirements of development by distributed energy consumption

interconnection of distribution equipment

distribution automation system upgrade and construction of new customer service infrastructure.In this paper

based on the summary of the definition of first-class distribution network

the advantages and disadvantages of the urban distribution network in developed countries including Singapore

Paris and Tokyo and so on is summarized

and the construction of urban distribution network in China

including Beijing

Tianjin

Shanghai

Xiamen

Shenzhen and so onis analyzed.According to the development trend of domestic and international urban distribution network

the conception of the urban distribution network core technology

including flexible and reliable grid

intelligent and standard equipment

efficient and lean operation & maintenance

and high-quality and interactive custom service is described so to provide a reference for the construction of grid structure

equipment

operation and maintenance and customer service in future urban distribution network.