In the past decades, plentiful outcomes were achieved in all aspects of fog researches in China. The recent development and outcomes in this field are summarized and generalized, including the studies of the characteristics of fogs using the climatological statistical method, the mechanisms of fogs by using the numerical simulation method, the microphysical structure of fogs, as well as the studies of the monitoring, recognition and forecasting techniques of fogs. On this basis, hot topics in the current and possible research areas in the future are analyzed, including researches on the fogs on highway, hazes, interaction between fogs and urbanization, and fogs in coastal areas and areas with complex terrain.