The length of life of a patient with hypertension depends not only on the level of blood pressure, but also on the severity of the complications of hypertensive disease, which are significantly correlated with target organ damage and complications of hypertension. If a patient has hypertension and is able to keep his blood pressure within normal limits by taking long-term medication or improving his lifestyle, and there are no complications or predisposing factors present, his life expectancy is the same as that of a normal person. However, if the patient has target organ damage, multiple cardiovascular and cerebrovascular risk factors, and combined with diabetes, the patient’s prognosis will be very poor. Especially when combined with acute myocardial infarction, aortic coarct, heart failure, intracranial hemorrhage, cerebral infarction, acute renal insufficiency and other hypertensive emergencies, the patient’s mortality rate is very high, the prognosis is very poor, and even life is at risk at any time.