Objective In order to assess the testing level and promote the capability of our laboratory，we participated in an evaluation test conducted by the External Quality Assurance System of Global Foodborne Infections Network (GFN EQAS) in 2009. Method Seventeen strains of blind samples were tested on antimicrobial susceptibility, serotyping and strain identification by micro-dilution, slide agglutination and 16S rDNA identification, respectively. Results There were partial deviations on the results of drug susceptibility. The detection on ESBLs（Extended Spetrum β-Lactamase） and serotyping were absolutely correct but the identification of unknown enteric bacteria was wrong. Conclusion The facts indicated that the recovery and identification of bacteria, and the interpretation on the susceptibility of individual drugs needed to be improved.