The elevation of blood sugar is the result of many factors acting together, and is a gradual process from light to heavy. Lowering blood sugar also requires choosing the appropriate methods for different factors. Commonly used methods are: Diet and exercise: Medical nutrition therapy is the basis of diabetes treatment. The general principle is to determine a reasonable total energy intake, a reasonable and balanced distribution of various nutrients, and to restore and maintain ideal body weight. Exercise can increase insulin sensitivity and help control blood sugar and body weight. According to the patient’s personal condition, regular and suitable exercises should be carried out under the guidance of physicians, gradually and persistently for a long time. Medication: If life regulation cannot control blood sugar, medication should be considered. Diabetes medication includes two categories: oral and injectable. Oral hypoglycemic drugs are divided into: insulin-producing agents such as sulfonylureas and glinides; inhibition of hepatic glucose output of biguanides; insulin-sensitizing agents such as glitazones; and alpha glucosidase inhibitors that inhibit sugar absorption. Injectable diabetes drugs are mainly insulin, including long-acting, medium-acting, short-acting, mixed and other preparations. In addition, there are some relatively emerging therapeutic means, such as metabolic surgery treatment, pancreatic transplantation and islet cell therapy, and management of hyperglycemic state during pregnancy, all of which have their own indications and contraindications. Therefore, the means of lowering blood sugar are relatively diverse, but long-term persistence is the basis, life and diet is the most economical and easy to do means, but should not be avoided, if the control is not good still need to choose other means.