This paper reviews researches on the sea fog over South China in recent years from the aspects of climate characteristics, formation and dissipation mechanism, microphysical and chemical characteristics, remote sensing monitoring, and numerical model forecast. The results show that the research on the sea fog over South China has achieved important progress, but there are still some deficiencies in researches on interannual and interdecadal characteristics, the microphysical and chemical characteristics of sea fog in different areas of South China, the comparison of observational study between the sea fog over the sea surface and that over the land region, sea fog remote sensing, and numerical model forecast. In order to have a deeper understanding of the sea fog over South China, researchers needs to carry out further studies.