γγThe number of hypertensive patients in China has increased to 130 million, and the incidence of hypertension in the elderly accounts for 60-70% of hypertensive patients. Under the promotion of WHO/ISH and China Hypertension Alliance guidelines, the prevention and treatment of hypertension has made great progress, and the pattern of blood pressure control has gradually changed from the previous emphasis on diastolic blood pressure treatment to the concern of systolic blood pressure and pulse pressure control in hypertensive patients. Systolic hypertension is a common type of hypertension in the elderly, and its primary referral is to cardiovascular and cerebrovascular disease. Fatal strokes account for 44% of deaths at the level of first-degree hypertension. Patients with pure systolic hypertension (SBP>160 mmHg,DBP65 mmHg) in the Chinese population have a significantly increased incidence of prognostic cardiovascular and cerebrovascular events. Studies in the United States investigating the relationship between coronary heart disease, cerebrovascular events and blood pressure have found that pulse pressure has become a major risk factor for cardiovascular and cerebrovascular events in the elderly.γγ1: The occurrence of cardiovascular events is associated with systolic blood pressure. In the observation of thousands of 24-hour systolic blood pressure cases, it was found that systolic blood pressure:greater than 140 mmHg was significantly higher than systolic blood pressure