The anthropogenic ammonia emission inventory in Anhui Province from 2006 to 2017 was made by using the emission factor method.The anthropogenic ammonia emission level,trend and spatial distribution characteristics were also analyzed.The results showed that Fuyang City and Lu'an City were the two areas with higher anthropogenic ammonia emissions in Anhui Province in 2017,while Ma'anshan had the smallest emission amount,accounting for 1.83% of the total in Anhui Province.The average ammonia emission intensity in Anhui Province was 5.34 t·km^-2.The ammonia emission intensity in Fuyang,Huainan and Bengbu were all over 7 t·km^-2.Ammonia emissions from livestock and poultry breeding sources increased from 2006 to 2017,especially from pigs,broilers and ducks,which accounted for 34.49%-38.39%,20.31%-32.8% and 10.40%-16.42% of the total ammonia emissions from livestock and poultry sources respectively.The ammonia emission from nitrogen fertilizer showed a trend from increase to decrease,and the amount in 2017 was 28.71 kt lower than that in 2013.Biomass combustion,human emissions and nitrogen fertilizer production were the main sources of ammonia emissions among non-agricultural sources,but the contribution of ammonia produced by motor vehicles showed a significant increasing trend.For example,the percentage of ammonia emission from motor vehicles increased from 1.86% in 2006 to 7.47% in 2017,which was related to the increasing vehicle ownership in Anhui Province in recent years.