Establishing the energy Internet trading system can effectively promote the development of new energy, especially distributed energy, and promote the upgrading of China"s energy transformation structure. As a new technology, the initial application of blockchain technology in the financial field shows the characteristics of flexibility, openness and decentralization, which can be transferred to the new energy field. Based on the blockchain technology, combined with the non-random and stable characteristics and dispersive characteristics of distributed photovoltaic power generation, this paper builds a photovoltaic micro grid transaction model, leading into the incomplete information game model. Then,Using the actual electricity data to build the photovoltaic micro grid transaction model, and taking the lead in introducing the actual calculation examples for analysis, comprehensively considering the cost of electricity consumption, which provides a reference for the energy Internet, especially for the study of the blockchain based distributed generation transaction model.