With the continuous development of power market reformation and the opening of power trading，a big number of new energy power generation enterprises actively participate in the power trading market. It helps involving more entities and reducing the power purchase cost，meanwhile it also brings new challenges and problems. The existing large-scale centralized power trading market and system cannot solve these challenges due to the distributed characteristics of new energy and the small and scattered trading characteristics. Blockchain technology is a natural distributed technology，which has been selected as the new technology infrastructure of new national infrastructure. This paper will introduce the construction of a multi-central distributed trading system through Blockchain technology. It organizes the consortium to improve the trading efficiency which comes with the current new energy business form. It promotes the nearby consumption of new energy and the efficient allocation of distributed power resources.