The incidence rate of diabetes is increasing year by year. The elderly are the high incidence of diabetes. More than half of the diabetic population are elderly patients. The elderly diabetes is complicated and often combined with other diseases. Diabetes is a group of metabolic diseases characterized by multiple causes and characterized by chronic hyperglycemia. It is caused by defects in insulin secretion and utilization. Elderly diabetes refers to diabetes patients over the age of 60, whose main clinical manifestations are polydipsia, polydipsia, polyuria, fatigue and weight loss. The etiology and pathogenesis of geriatric diabetes are rather complex.