The beneficial biomass of inactivated lactic acid bacteria includes dead cells and their metabolites which has the functions of regulating intestinal flora balance, regulating immunity, inhibiting pollinosis and so on.The researches on the probiotic functions of inactivated lactic acid bacteria in recent years, and its advantages of food processing characteristics were reviewed. The well-known inactivated lactic acid bacteria strains and best-selling food examples in the Japanese market were also highlighted, which provided technical references for the development of common foods and functional foods containing inactivated lactic acid bacteria in China.