Using Citespace software,2496 and 135 literatures in the field of marine carbon sequestration searched in Web of Science core collection and CNKI database were analyzed by bibliometrics visualiza-tion,and the research development process,research hotspots and frontiers in the field of marine car-bon sequestration were analyzed from the aspects of published volume,countries and regions,institu-tions,periodicals and keywords.The volume of articles published abroad showed a linear growth trend,while the trend of domestic articles did not conform to the linear growth trend.From the per-spective of national and regional cooperation,Germany,Canada,Australia and the Netherlands cooper-ated most closely and had the greatest impact on this field.In terms of the level of institutional scientif-ic research,the United States had the largest volume of papers and the most influential,Woods Hole Oceanog.Inst.had the strongest influence in this field.The main international journals were Global Biogechemical Cycles,Biogeo Sciences and Geophysical Reasearch Letters.The main domestic journals were Scientia Sinica(Terrae),Progress in Fishery Sciences,Marine Sciences and so on.Foreign re-search hotspots mainly focused on marine carbon sequestration and its role in dealing with climate change,the frontier of research was the impact of global storage of blue carbon on climate change.Do-mestic research hotspots were the mechanism of marine carbon sequestration and ocean acidification,and the research frontier was roughly the same as abroad.