Hypertension level 2 is defined as systolic blood pressure at 160-179mmHg and diastolic blood pressure at 100-109mmHg. Prevention of hypertension level 2 refers to the prevention of further damage to target organs and the emergence of complications on the basis of blood pressure reduction. Prevention involves the following: i. Control of blood pressure to at least 139/89 mmHg or less, and preferably 120/80 mmHg or less; ii. Smoking cessation, regulation of blood lipids, weight loss, control of blood homocysteine, and prevention of ventricular hypertrophy by applying medications that can improve ventricular remodeling, such as angiotensin-converting enzyme inhibitors, Benadryl, etc., or angiotensin receptor II antagonists, such as timosartan, etc., oral statins to stabilize arterial plaque, such as atorvastatin, resuvastatin, etc.; third, control of urinary micro-protein, prevention of complications, such as cerebral infarction, cerebral hemorrhage, myocardial infarction, etc., control of creatinine to further deteriorate, as well as control of blood glucose and treatment of diabetes mellitus.