Hypertension is a common cardiovascular disease. In clinical practice, cardiovascular diseases mainly include hypertension, coronary heart disease, unstable angina pectoris, acute myocardial infarction, valvular heart disease, rheumatic heart disease, cardiac insufficiency, cardiomyopathy, myocarditis, pericardial effusion and so on. Patients with hypertension often do not show obvious symptoms, some have no obvious symptoms, some patients show dizziness, headache, weakness, numbness of the limbs. The prevalence of hypertension in China is relatively high, with about 270 million people suffering from hypertension, but the awareness rate and control of hypertension among the population are relatively low, so the treatment of hypertension is a long way to go.