In order to achieve the goals of "carbon peak" and "carbon neutrality" on schedule, China has introduced a series of policies such as "dual energy consumption control" and "carbon emissions trading". As the country has a large energy demand, a large population base and a large number of people and enterprises participating in carbon emissions, the national carbon emission reduction measures need to give policy directions and guide the whole people to participate. Through analysis, we find that although the current facts show that the dual control policies of energy consumption or carbon emissions trading have their own advantages and disadvantages, the combination of these two policies can complement each other. Therefore, this paper has carried out a series of analysis on the feasibility of the combination of the two carbon emission reduction policies, and made plans and assumptions on the direction that can be improved after the combination of the policies, hoping to make contributions to carbon emission reduction and achieve the "double carbon" goal.