Abstract: With the deepening of research and practice related to energy internet in countries around the world, the understanding of energy internet has gradually become clear. However, in the process of large-scale construction and promotion of energy internet, new development bottlenecks have also been encountered. Starting from the development situation of energy internet, this article elaborates on the constantly enriched connotation in the evolution process of energy internet, and analyzes its "four-flow" integration technical formation and the physical formation of different scales. On this basis, this article delves into and outlines the mission of the Energy Internet. At the same time, in view of the barriers and challenges existing in the current energy internet construction, this article proposes a multi-level energy internet architecture of "autonomy + collaboration" and a construction model, and introduces the exploration and practice of Shanxi Zhejiang provinces. It is expected that the proposed energy internet construction ideas can provide reference proposals for large-scale energy internet construction, further promote the vigorous development of energy internet industry, education, and research, and systematically support China's energy revolution and the safe and controllable achievement of the "dual carbon" goal.