Space station energy system and new power system are important application scenarios for future energy systems in China. In terms of key technologies, the system structures of the two systems tend to be complicated, the capacity levels tend to be large,and the performance requirements tend to be high reliability and high security. At the same time, the two systems have different connotation characteristics, different power types, different application scenarios, different technical and economic priorities. On this basis,the relationship between the two systems are furtherly discussed,from the macro strategy, both are part of the national strategy. From the technical route, the space station energy system is a special, zero carbon emission, miniature new power system. From the perspective of academic research, both have many academic fields worthy of scientific research. From the perspective of future development, they have mutual reference significance in terms of safety and reliability and technical economy.