[Objective] The research aimed to study pollution characteristics of steroid estrogens in feces from concentrated dairy feeding farms of Anhui Province. [Method] Estrogen's level and type in feces of six concentrated dairy feeding farms in Anhui Province,soil sample of feces dump and water sample around dairy feeding farms were investigated using GC- MS method. [Result]Estrogens in dairy feces mainly included E1,17α-E2 and 17β-E2,and concentration of 17α-E2 was the highest. During the youth period of cow,th...