The types and characteristics of contaminated bacteria in health foods were investigated.Methods38batches of health foods were analyzed according to National food safety standard GB 4789-2010, and bacteria were identified by automatic microbial identification system. Results69contaminated bacteria were isolated from 38batches of health foods. Pathogens and opportunistic pathogens were isolated when taking examinations of Coliforms, Samonella and Staphylococcus aureus.ConclusionMicrobiological quality of health foods can be improved by control of raw materials, environment, strict disinfection and sterilization.