Diabetes mellitus is a group of clinical syndromes caused by a combination of genetic and environmental factors with disorders of glucose metabolism as the main manifestation, caused by defects in insulin secretion and/or action. Diabetes can be complicated by a variety of chronic complications, leading to organ dysfunction and failure, and even disability or death. With the continuous improvement of people’s living standards and the aging of the population, the incidence of diabetes is increasing year by year. This makes type 2 patients present the current situation of diversified and complicated medication. Therefore, anti-type 2 diabetes drugs are important for improving glycemic control and delaying or reducing complications. At present, there are two main categories of drugs for the treatment of type 2 diabetes: one is not directly stimulating insulin secretion, but can improve insulin sensitivity, and insulin sensitizers, such as: 1, biguanides, such as metformin; 2, α-glucosidase inhibitors, such as acarbose; 3, thiazolidinediones, such as pioglitazone; the other category is the drug can directly stimulate insulin secretion, that is, insulin secretagogues These drugs include: (1) sulfonylureas, such as glimepiride; (2) non-sulfonylureas, such as Repaglinide. Glucagon-like peptide-1 (GLP-1) analogs and dipeptidyl peptidase IV (DDP-4) inhibitors can also lower blood glucose significantly and stably. In addition, insulin therapy may be initiated when oral hypoglycemic drug therapy fails or when symptoms and significantly elevated blood glucose develop. Insulin treatment methods include insulin pump subcutaneous infusion (CSII) and multiple subcutaneous insulin injections (MSII), and the latter is mostly used in China at present, but its method cannot effectively simulate 24h physiological insulin secretion, thus it cannot effectively control fasting hyperglycemia and is also prone to nocturnal hypoglycemia, which makes patients unable to prevent the occurrence of diabetic complications even after using insulin. On the contrary, insulin pump can completely imitate the function of human pancreas through microcomputer bionic principle, and release the insulin needed by human body at any time. It successfully simulates the way of insulin secretion by human pancreatic islet cells in physiological state. It makes the blood glucose in the human body stay in a normal state without violent fluctuations up and down. This reduces the occurrence of complications in diabetic patients. However, unfortunately, although the above medical treatment can control blood sugar at a relatively low level and avoid the occurrence of serious complications, but the blood sugar is still well controlled by less than 1/3 of the patients, in recent years, the surgical treatment of type 2 diabetes has opened up a new way of thinking. In recent years, the use of laparoscopic surgery has brought new hope to patients because of its advantages of small trauma, fast recovery, safety and effectiveness, low complication rate, and, after surgery, stable and lasting blood glucose control without the need for drug treatment, which greatly reduces complications and sequelae, improves quality of life and reduces economic burden. Although there are many ways to treat diabetes, in the face of the serious fact that diabetes is a global development trend, it has become an urgent task to actively carry out the prevention of diabetes and its complications to reduce the incidence of diabetes.