The concepts of the marine fisheries carbon sink and carbon sink fisheries current state of research, main problems, technological needs are introduced in this paper. Compared to forestry carbon sequestration, marine fisheries carbon sink is characterized by both high efficiency and scale-up potential. Therefore, the strategy and measures for scaling up marine fisheries carbon sink are proposed, including: investigating the potential and mechanisms for marine fisheries carbon sink; vigorously developing carbon sink fisheries of which the principal part is aquaculture; strengthening the conservation and management of natural carbon sink and environment of China's seas; implementing fisheries carbon sink amplification project construction, and promoting the development of environmentally friendly aquaculture industry.