Diabetes, a common chronic metabolic disease, was the third largest disease following cancer and cardiovascular disease.At present, the pathogenesis of type 2 diabetes was not clear.In recent decades, studies showed that intestinal flora plays a role in the prevention and treatment of type 2 diabetes.Application of probiotics and supplements on the prevention of type 2 diabetes has become a new research topic in recent years as people pay more attention to health.The value of probiotics has been recognized by many nutritionists, microbiologists and immunologists.This article reviewed the progr...