Impaired glucose tolerance is the precursor syndrome or leading cause of type 2 diabetes. And until now there has been no researches investigating the morbidity of this disease. Whereas, for the reason that diabetes is jumping to be a global disease-according to estimated data the number of patients with diabetes in the whole world will increase to nearly 300 millions in 2025, we can find out that this concealed disease has been spreading rapidly in the world. Study has indicated that the prevention and delaying of the disease occurrence is the most important issue in our country today. Effectively changing patients' life style became crucial for health authority and researchers. Researches have proven that exercise is and natural and natural therapy for prevention of diabetes. This article systematically reviewed relevant researches on exercise and impaired glucose tolerance and provided useful information for clinical heath providers, researcher, and government officials.