Abstract-It reviewed global atmospheric mercury field observations progress. Progress of atmospheric mercury observations was divided into two parts. One is for atmospheric mercury observations in region outside China including the U.S., Canada, EU, Japan, UK, etc. Another is to introduce the atmospheric mercury observations in China. Despite much observations on atmospheric mercury been launched in China, problems still exists. The observations sites are mainly centralized in urban areas and the background observation is much insufficient. The time for observations is relatively short and there is few data on long-term continuous observations. The data of the observations on total gaseous mercury is much while the observation of speciated atmospheric mercury is in deficiency.Index Terms-Total gaseous mercury, gaseous elemental mercury, reactive gaseous mercury, particulate mercury.