2020 is the second year of our 5G industry entering into business and construction. As the pioneer of reform and opening-up，Shanghai has become the only city selected by the three major operators at the same time，leading the layout in the collaborative innovation of 5G industry chain and the construction of application scenarios. In recent years，Shanghai has issued a series of policies to support the development of 5G communication industry. Shanghai has been in the forefront of the country on the construction and investment of 5G communication. At present，Shanghai has become the city with the most deployment of 5g base stations in the country，and its application scenarios also include the fields with strong innovation and good demonstration effect，such as Internet of vehicles，new information consumption，5g + medical，intelligent government，etc. Based on combing the development and application scenario construction of Shanghai 5G communication industry，this paper proposes that Shanghai will continue to develop in the three major directions of 5G core technology，application scenario and industrial integration in the future. Then，this paper points out the possible problems in the future development，including the significant increase of base station construction density，which increases the cost of base station construction and operation，and the problem of information security brought by network architecture reconstruction. Finally，the paper puts forward corresponding policy suggestions to provide research support for Shanghai to take 5g communication industry as the lead and promote high-quality economic development.