Abstract: The products of ruminant feed including pre-mixed feed, concentrate supplementary material, the full price feed and cattle or sheep-derived feed including fish meal, poultry meat powder, etc from the enterprise in He Nan province were detected by qualitative polymerase chain reaction (PCR) . The results showed that the qualified rate was 99.14% in 350 batches of ruminant feed and animal-derived material feed. Among these products, the qualified rate was 99.03%in 310 batches of ruminant feed and the qualified rate was 100% in 36 batches of animal-derived material feed. In the three batches of unqualified products, one batche contains cattle and sheep-derived material .Two batches simply contain cattle-derived materials.