There is no cure for type 2 diabetes, only the ability to manage type 2 diabetes and control blood sugar. Some patients can be treated without medication on the basis of good diet-exercise control. But for some patients, diet-exercise control is still unsatisfactory, it is necessary to add glucose-lowering drugs for treatment. The drugs to control blood sugar are: 1. Metformin extended-release tablets are preferred. 2. Acarbose is used, and acarbose is mainly applied to control blood sugar at mealtime of each meal. 3. Gliclazide, glimepiride, gliquidone and other sulfonylurea pro-secretory agents, in addition to non-sulfonylurea pro-secretory agents, DPP-4 enzyme inhibitors, SGLT-2 inhibitors, GLP-1 receptor agonists, etc. If the above-mentioned drugs still cannot be controlled, insulin can be used to give treatment. There are short-acting insulins, medium- and long-acting ones, and long-acting ones.