Abstract: Sea fog is one kind of severe weather phenomenon that exerts important influence on many aspects of social life, such as marine transportation, fishing, port operations, as well as the high-way transportation and the electric power transportation in coastal areas. Previous researches indicated that the financial and human losses related to fogs and low visibility became comparable to the losses resulted from other weather events, e.g., tornadoes or even hurricanes, in some situations. In this paper, some important progresses were reviewed on the sea fog study in China in recent 30 years. Also the authors paid much attention to discuss the following important issues on sea fog researches, i.e., the microphysics of sea fog, the relationship between sea fog and stratus, the sea fog occurrence frequency over the Northern Pacific and Northern Atlantic, the numerical simulation of sea fog, the data assimilation and ensemble forecasting of sea fog. This paper may provide useful information for those who want to know the latest progress of sea fog study in China.