The separation,screening and identification of Pediococcus from Northern Chinese Sausage were investigated.5 Pediococcus were identified in order to develop fine fermentation agent.Refers to TAXONOMIC OUTLINE OF THE PROKARYOTES,the initial appreciation was manifested that R1 was Pediococcus acidilactici;R4 was Pediococcus xylosus;R2,R5,R10 was Pediococcus dextrinicus.