Abstract: The twenty-fourth Winter Olympic Games will be held from February 4^th to 20^th, 2022, in Beijing and Zhangjiakou cities, China. The main venues will be at Beijing Olympic Sports Center and in Yanqing and Zhangjiakou. In order to simulate and analyze the air quality of the Winter Olympic Games, we used air quality monitoring data of Beijing in February in each year of 2006-2016 and weather map data from the Korean meteorological agency in February in each year of 2013-2016 to research the air quality situation during this period of the year. The frequency of heavy pollution in February in each year of 2006-2016 in Beijing was described, and the occurrence probability of synoptic situation not beneficial to contaminants diffusion and the transmission path of pollution were also analyzed. In addition, the effects of emission reduction schemes on concentration of PM_2.5 were evaluated, combined with nested grid air quality prediction model (NAPQMS). The results showed that: (1) During the same period as the Winter Olympic Games, the occurrence probability of heavy pollution at Olympic Center and Yanqing was 17% and 9% respectively. The risk of pollution in Olympic Center was the highest compared to Yanqing and Zhangjiakou, which faced the lowest risk. In addition, continuous heavy pollution easily occurred from February 13^th to 16^th in the past years in Olympic Center and Yanqing. (2) The synoptic situation which was not beneficial to contaminant diffusion appeared frequently in February in each year of 2013-2016, especially in 850 hPa and sea level synoptic, with frequency of 35% and 41% respectively. The ground southerly wind transported air pollution detained in southwestern Beijing to Beijing along Taihang Mountain. (3) If pollution emissions from Beijing, Tianjin, Hebei and surrounding cities can be reduced by 50% below current emissions from February 2^nd to 12^th and 17^th to 20^th in 2022, and reduced by 75% from February 13^th to 16^th, we predict that heavy pollution will not appear during the coming Winter Olympic Games. Thus, strict control of emissions from Beijing and its surrounding areas is a necessary measure to protect the air quality during the Winter Olympic Games.