Hypertension is the most common cardiovascular disease, and it is also the most important risk factor for serious fatal and disabling cardiovascular and cerebrovascular diseases such as stroke, myocardial infarction, heart failure, renal insufficiency and fundus bleeding and exudation, and it is the most direct "barometer" of cardiovascular health. A recently published nationwide epidemiological survey shows that there is 1 case of hypertension in every 4 adults. Therefore, hypertension is not a disease that can be simply waited for diagnosis and treatment in hospitals, but a public health problem involving thousands of households, which requires the participation of the whole society. This question is directly related to whether the ambitious goal of "Healthy China 2030" can be achieved.