Abstract:Marine carbon sink is one of the important ways to solve the problem of carbon emission in China. Under the dual constraints of economic development demand and ecological capacity, more policy means need to be explored to achieve carbon peak and carbon neutral in China. There is great potential for the construction of marine carbon sink in China. It is of great significance to build an integrated carbon sink system by combining marine carbon sink with land carbon sink. In the path of marine carbon sequestration increase based on marine ecological improvement, marine breeding, coastal wetland protection and pollution emission will provide the possibility for the increase of marine carbon sequestration. On the basis of the original carbon trading market, through the design of reasonable carbon trading rules, we can guide more resources into the field of marine carbon sink construction in the way of market, and achieve the goal of enhancing China’s carbon strength.