Urban energy internet can realize the deep integration of various networks such as power network, natural gas network and electrified transportation network, which is the direction of future urban energy system transformation and development. Firstly, the definition of urban internet is given, and the core idea and basic features of urban energy Internet are expounded. Then, the development status and challenges of energy internet are summarized and analyzed from the perspective of operation, planning and marketing. Then, according to the technical characteristics of urban energy internet interconnection, the urban energy internet technical framework of transport layer, information layer, and price layer is proposed, and future development direction of related technologies such as planning, operation, marketing and information involved in the technical framework is analyzed. Finally, according to the characteristics of the terminal energy network in Xiamen city, Fujian Province, urban energy Internet is partially planned and piloted, which provides a blueprint for the comprehensive promotion of the urban energy internet. This work is supported by National High-tech R & D Program of China (863 Program) (No. 2014AA051901).