Abstract: Sunflower is the main cash crop in Bayannur of Inner Mongolia, and its by-product sunflower disS, is widely used inanimal industry. In order to utilize sunflower discs safely and reasonably and improve the feedstuff database in Bayannur, thesunflower discs in 6 counties of Bayannur were collected, and their contents of fluorine and chromium were determined. Theresults showed that the contents of chromium and fluorine in sunflower discs of the 6 counties of Bayannur were lower than thestandard of feed hygiene, and the contents of chromium and fluorine in the sunflower dises from Urad Qianqi and Shuanghe, Linhewere higher.