Abstract: In this paper, we reviewed the process of marine geological informatization construction , introduced the top-level design framework for marine geological informatization, summarized the achievements of marine geological informatization construction in the past 20 years in terms of the technology standards , network systems, data resource construction, data sharing and information services, and the full process informatization of marine geological survey. It is believed that the achievements of marine geological informatization are abundant, which has laid a solid foundation for the modernization of marine geological work, played a good supporting role in transformation. In addition, we analyzed the problems of insufficient personnel integration, insufficient perception equipment, insufficient support for rapid output of results, and insufficient application of big data analysis technology and artificial intelligence technology in current marine geological informatization. At last, we proposed that in the future, marine geological informatization work shall strengthen concept transformation, implement actions to promote deep personnel integration, strengthen perception computing and analysis capabilities, expand the entire process system, promote big data analysis, and further strengthen the application of artificial intelligence in marine geological surveys.