Diabetes has become one of the chronic diseases that seriously threaten human health. Coronary heart disease, nephropathy, retinopathy and neuropathy caused by diabetes are the main causes of death and disability of patients. Diabetes has become the third major non-communicable disease after cardiovascular diseases and tumors, and is a worldwide public health problem that seriously threatens human health. There are many patients who have heard of surgical treatment for diabetes in addition to medication, but are less aware of this medical technology. Gastric diversion surgery, which is mainly used to treat morbidly obese patients with type 2 diabetes, has been practiced in the United States since the 1980s and has been found to provide complete remission of diabetes after surgery. Clinical studies by domestic and foreign experts for decades have confirmed that surgical treatment of type 2 diabetes is effective, with a surgical efficiency rate of 95% and a complete remission rate of over 83%. In 2009, the American Diabetes Association (ADA), the world’s leading authority on diabetes treatment, included gastric bypass surgery in the Guidelines for the Prevention and Treatment of Diabetes, establishing it as a routine treatment for diabetes. In September of the same year, the European Diabetes Association confirmed diabetes as a curable gastrointestinal disease. Foreign studies reviewed the clinical data of 22,094 patients with type 2 diabetes who underwent gastric bypass surgery between 1990 and 2002, suggesting a weight loss rate of 61.6% and a complete remission rate of 83.6%, along with significant improvements in hypertension, hyperlipidemia, and sleep apnea. The benefits after surgery to achieve diabetes remission are also quite significant, with a reduction in diabetes-induced morbidity and mortality (92%) after 7 years of surgical treatment.