The sharing concept has become the overall goal of China's social development. The accelerated breakthrough and application of the new generation of information technology will make a profound change in the future life scene. Energy sharing is an important part of sharing cities

and the core value of energy internet is interconnection and sharing. This paper analyzes the current situation and future development trend of urban energy consumption demand in China

and puts forward five characteristics of urban energy comprehensive utilization system in the future

including openness and sharing

digital and intelligence

coupling and fusion

decentralization and marketization

and all-element wide-area energy saving system. Then

the paper proposes the basic framework of energy sharing system of future cities

which includes energy sharing

information sharing and service sharing

from the three dimensions of physical layer

information layer and service layer.