There are four main surgical treatments for diabetes, including gastric diversion surgery, sleeve gastrectomy, gastric banding surgery, and biliopancreatic bypass surgery. The first and second are more commonly used at present. The third, because gastric banding surgery it is relatively simple to operate, but because a gastric band is added to the patient at the bottom of the stomach to control the patient’s diet, and then there is an extracorporeal adjustment band, which brings great inconvenience to the patient. The fourth biliopancreatic shunt, although the most effective method to lower sugar and reduce weight, has many complications and is likely to cause malnutrition in patients later. So now the two most done procedures are gastric diversion and sleeve gastrectomy. Among them, gastric diversion is mostly used for the treatment of diabetes, and sleeve gastrectomy is mostly used for simple weight loss. Of course, in our clinical process of doing this kind of surgery, we also combine some experiences from Europe and America, including our Asian experiences. On the basis of the surgical guidelines, a revised surgical guideline was made in 2018. So it is also gradually in the clinical process, gradually in the improvement of these surgical guidelines, through the surgical guidelines to guide our surgery. Because this surgery is one of the emerging technologies in the world in this century, and it is proven to be a very effective method for both diabetic and weight loss patients.