Abstract: In order to achieve daul carbon goals , China has established an energy consuming trading scheme and emission trading scheme in the environmental rights trading market system. The former controls the upper stream of energy use and consumption per unit of energy, while the latter controls the downstream of GHG emissions of enterprises. Therefore, effective convergence of the two systems will be conducive to efficient coordination in achieving energy conservation and emission reduction goals. Both systems embody the consistency in the theoretical background. However, there are also differences in the legal basis, Allowance allocation methods and so on. In the future, China should start from three aspects: legislative path, institutional arrangement, and safeguard measures, to provide solutions to issues related to the connection between two trading systems.