In recent years, the penetration level of renewable energy increases significantly, and the traditional planned power generation dispatch begins to switch to the market trading mode, particularly under the background of market reform in China. At the same time, the promising energy internet technology contributes to the integration of massive distributed energy sources. Hence, the power trading platform needs new construction ideas. Combined with the previous research on energy internet and power trading service platform, we analyze the power trading service platform under the energy Internet. Firstly, we summarize the core functions of power trading platform under energy internet. Then, we discuss the main technologies of the electricity trading platform, and put forward the deployment architecture of the electricity trading platform. Finally, we summarize the potential application scenarios of the energy internet-oriented power trading platform. The present work, hence, can help policy markers to refine the design of power markets.