Abstract: [ Objective ] In order to understand the bacterial pollution level of beef feed from cattle farms that located in two regions in Xinjiang, the Coliform group and Salmonella in 18 collected feed samples were detected. [Method] The method of Salmonella detection was in accordance with provisions of the national standard GB/T 13091-2002, and the method of Coliform group detection was in accordance with provisions of the national standard GB/T 18869-2002. [ Result ] The straw feed had the highest number of Coliform group, which was up to 11 000/100 g; However, processed feeds like pellet feed, cottonseed feed and rapeseed feed, the number of Coliform group were all lower than 40/100 g; and there＇s no Salmonella to be detected in all feed samples. [ Conclusion ] All the 18 detected beef feed samples were contaminated by Coliform group at different degrees.