The criteria for cardiovascular risk stratification in hypertensive patients are divided into low risk group, intermediate risk group, high risk group and very high risk group. The specific stratification criteria are classified as when the patient is in hypertension class 1, if there are no risk factors and medical history, it is called low risk group, 1-2 risk factors are called intermediate risk group, ≥3 or more risk factors or damage to target organs are called high risk group, and patients with clinical complications or combined diabetes are called very high risk group. Patients with grade 2 hypertension without risk factors or a history of 1-2 risk factors or with ≥3 risk factors or target organ damage were called the intermediate risk group, and patients with clinical complications or a history of combined diabetes were called the very high risk group. patients with grade 3 hypertension without risk factors were also called the high risk group, either with 1-2 risk factors or ≥3 or more risk factors and target organ damage, or with clinical complications or combined diabetes. Patients with 1-2 risk factors, ≥3 risk factors, target organ damage, or clinical complications combined with diabetes mellitus were considered very high risk.