Obesity and type 2 diabetes are not uncommon anymore, and many people are familiar with it due to the public’s concern about health and the national publicity and health knowledge. However, on the issue of weight loss surgery to treat diabetes, the main treatment is to improve insulin resistance in the body through weight loss to restore the body’s glucose metabolism function. First of all, regarding the difficulty of weight loss, it is important to know that there are many people who end up with no success through conventional weight loss methods, and secondly, when obese people with type 2 diabetes repeatedly lose weight, the time required is actually delaying the disease. Finally, even if it is possible to lose weight successfully, the therapeutic mechanism of bariatric surgery is not limited to weight loss in the treatment of this problem of diabetes. Gastric bypass surgery, the gold standard procedure in weight loss and glucose reduction, changes the secretion of hormones in the gut-islet axis and changes the intestinal flora in the process of reconstructing the digestive tract, both of which are also important in the treatment of diabetes. Therefore, bariatric surgery is a better option for obese patients with type 2 diabetes to treat the condition in a stable and effective manner. However, weight loss surgery as a system project does not mean that the surgery can be done once and for all, but also requires post-operative diet and life conditioning to maximize the effect of the surgery, and a large health management team is a guarantee for a patient after surgery. A health manager and a nutritionist will provide patients with multi-on-one dietary guidance, assist in establishing good living habits, and pay long-term attention to patients’ post-operative physical condition. At present, there are not many bariatric surgery institutions with large health management departments in China, and our post-operative management services are provided at no additional charge, providing free consultation and guidance services for post-operative patients.