The surgical treatment of diabetes originated in Europe and the United States, and the surgical method has always been used to treat obesity, which is also commonly known as “bariatric surgery”, but because many obese patients themselves are often combined with diabetes, so many doctors were surprised to find that not only the patient’s obesity was relieved after the surgery, even the diabetes was miraculously restored, so in Later on, in continuous attempts and improvements, the surgical method was applied to the treatment of diabetes not only in foreign countries, but also in China, “diabetes surgery” has been carried out in major hospitals one after another, for diabetic patients, “one surgery, no medication for life, a complete cure for diabetes The lure of “one surgery, no medication for life, complete cure for diabetes” is huge. Many patients have great expectations for the success rate and long-term effects of this new treatment, and some have even taken the initiative to try this surgery. So, is diabetes surgery really as good as people think it is? Is diabetes surgery the “magic bullet” for all diabetes? The surgical treatment of type 2 diabetes is indeed beyond simple medication. This is because the goal of pharmacological control is to control blood glucose and keep glycated hemoglobin below 7, thereby reducing the vascular complications of diabetes and other risks of diabetes. In contrast, the purpose of surgical treatment of diabetes is different from the purpose of even the thinking of an internist. The purpose of surgical treatment of type 2 diabetes is to achieve complete remission or even long-term maintenance of normal blood glucose through surgery, which is the difference in the purpose of medical and surgical treatment. Diabetes is an incurable disease, this has been the understanding, in the clinical work encountered those obese diabetic patients internal medicine physician’s treatment is to control the mouth and legs, drugs to keep up, but found that blood sugar slightly control, weight continues to grow, resulting in insulin dosage is substantially higher, and lead to diabetes aggravation, a vicious circle. And the complications of diabetes are not completely avoided while using medication. It is an indisputable fact that the effectiveness of surgery in treating diabetes exceeds that of general medication. Internationally, endocrinologists and Russian doctors of metabolic surgery have reached a consensus that surgery is recommended for obese type of diabetes if medication is not satisfactory to control it. By surgically reducing the stomach or modifying the normal digestive pathway, reducing food intake and absorption, and improving the metabolic and secretory functions of the gastrointestinal tract, the normal digestive and absorption pathways are bypassed, appetite is reduced, energy intake is intentionally reduced, the glucose metabolism status of the body is improved, insulin resistance is reduced, and apoptosis of pancreatic islet cells is improved or reduced, therefore, through gastrointestinal surgery, diabetic patients who meet the indications for surgery Therefore, diabetes can be completely cured or improved to some extent in patients who meet the indications for surgery through gastrointestinal surgery. The surgical treatment of diabetes has its origins in bariatric surgery. There are many methods of bariatric surgery, including gastric banding, gastric bypass, sleeve gastric, biliopancreatic diversion, and duodenal isolation, but not all of them can be used to treat diabetes. Currently, the main surgeries suitable for diabetic patients are: gastric banding, gastric bypass and sleeve gastric surgery and sleeve gastric + duodenojejunal short circuit, gastric folding surgery without cutting the stomach, etc. The choice of specific surgery needs to be considered according to the specific conditions of diabetes and the patient’s own requirements. Indications for diabetes surgery: 1. Patients younger than 65 years old; 2. Obese patients with BMI > 35, regardless of the presence of type 2 diabetes, can be considered as a high-risk group for diabetes; 3. Patients with BMI of 30-35 and combined type 2 diabetes, who cannot effectively control blood sugar or develop diabetes complications through lifestyle changes and medication; 4. diabetes and have at least two criteria for metabolic syndrome: high triglycerides, low HDL cholesterol levels, and hypertension; 5. Patients with diabetes with BMI < 27.5 should have recent surgeries with informed consent of the patient and in strict accordance with the study protocol, but the nature of these surgeries should be considered purely as part of an experimental study approved in advance by the ethics committee only and temporarily not suitable for widespread dissemination.