Abstract:Multi-energy joint participation in market operation is the development direction of the in-depth reform of China"s electricity market system. As the market transaction volume of new energy such as wind power and photovoltaic has increased year by year, other energy types such as thermal power, hydropower, and energy storage have implemented market mechanisms adapted to them according to their own operating characteristics. However, when multi-energy joint participation in the market operation, due to its strong diversity and heterogeneity, it is necessary to deeply consider the collaborative operation effect of multi-types of energy, so as to provide technical support for the government to issue relevant policies. In this context, this paper summarizes the relevant policy suggestions for the construction of China"s power market; Secondly, it analyzes the current situation of multi-type energy and participation market. Then, it points out the market positioning of thermal power, new energy, hydropower and other energy. Finally, combined with the above analysis, the improvement measures of multi-type energy participation market are put forward from multiple dimensions, which will help China further improve the design of multi-type energy participation market mechanism, promote China to accelerate the realization of dual carbon goal, and realize the purpose and vision of energy green transformation.