The residual level of β- agonists veterinary medicine including clenbuterol, ractopamine and salbu-tamol in mutton products in Ningxia was analyzed in the paper by monitoring the residual level in mutton productsin recent two years. The residual risk was assessed. According to the results of experiment, the detection rate of clen-buterol, ractopamine and salbutamol were 1.5%, 12.3% and 5.4%, with the residual range of 0.31~0.51μg/kg,0.32~1.29μg/kg, and 0.34~0.63μg/kg. The minimum index of food safety of clenbuterol, ractopamine and salbuta-mol in mutton products in Ningxia was 1.3×10^-3, while the mean was 2.1×10^-3and the maximum was 3.2×10^-3, which was much less than 1. It indicated that the residue of β- agonists veterinary medicine in mutton products in Ningxia would not be harmful to human beings and it was safe and acceptable.