Abstract: In order to investigate the situation of methicillin-resistant Staphylococcus(MRS) in livestock and poultry, the method of PCR and dig-labeled nucleic acid probe to mecA gene fragment were established to detect 75 Staphylococcus isolates. Forty-two strains of MRS were screened out by PCR, accounting for 56.0%. Forty-seven strains of MRS were screened out by nucleic acid probe method, accounting for 62.7%. The coincidence rate of acid probe method with PCR method was 93.3%. It was verified that MRS could be isolated from livestock and poultry in vivo or in vitro, with higher isolation rate. Veterinary researchers should pay more attention to Methicillin-resistant Staphylococcus.