The following drugs are used to control blood sugar: 1. Metformin, which is the first choice recommended by the guidelines, generally used at a maximum of 2000mg per use, can effectively inhibit hepatic gluconeogenesis and improve the sensitivity of muscle fat to insulin. 2. α-glucosidase inhibitors, represented by acarbose, which is mainly used to reduce blood sugar 2 hours after meals, some patients may experience gastrointestinal reactions. 3. The main purpose is to promote insulin secretion.4. DPP-4 inhibitors, which can glucose-dependent hypoglycemic therapy, with better safety and no obvious side effects.5. SGLT-2 inhibitors, which lower blood glucose by increasing renal sugar excretion, with protective effects on both heart and kidney.6. GLP-1 receptor agonists, which can lower blood glucose by GLP-1 receptor agonist can control blood glucose by suppressing appetite and delaying gastric emptying, and also has a significant effect of lowering body weight.7. Insulin, which can lower blood glucose by simulating insulin secretion in the body, can effectively lower blood glucose for patients with high blood glucose, and can be used for patients with acute complications of diabetes and liver and kidney insufficiency.