Abstract: First introducing the background of Service 4.0, it is proposed that its core is the deep integration of human-machine-things, and its fundamental changes compared with the three stages of Service 1.0, 2.0 and 3.0 analyzed. Next, the application and research status of Service 4.0 and intelligent service are briefly introduced. Then, the connotation and key characteristics of intelligent service are summarized, and the multi-dimension connotation of the energy intelligent service is analyzed. The four-dimensional expression model of intelligent service system is constructed. In addition, the opportunities and challenges faced by the construction of energy intelligent service system in the Service 4.0 era are analyzed. Finally, the application prospects of Service 4.0 and intelligent service are introduced, taking energy intelligent service as an example.