Glycine insulin 12 units per day more or less should be based on the actual condition, if the injection amount is clearly under the guidance of the doctor, it is not much. Insulin is divided into basal insulin and mealtime insulin. Basal insulin mainly regulates fasting and preprandial blood glucose levels, while mealtime insulin mainly controls postprandial blood glucose. Common basal insulin includes glucagon insulin and degu insulin; common mealtime insulin includes menadione insulin injection and so on. With the decline of pancreatic function in diabetic patients, insulin can be considered when medication fails to control blood glucose. If blood glucose control is not good, fasting and 2-hour blood glucose after three meals should be monitored, adjustment of insulin dose should be carried out under the guidance of a doctor, and attention should be paid to the occurrence of hypoglycemia when using insulin. It is recommended that diabetic patients use insulin for hypoglycemic treatment under the guidance of professional doctors.