Hypertension in the elderly is defined as systolic blood pressure > 140 mmHg and diastolic blood pressure > 90 mmHg. An increase in systolic blood pressure may be accompanied by an increase in diastolic blood pressure, also known as hypertension. If the patient is older than 70 years old, the range of blood pressure is relatively relaxed, and if the patient has combined target organ damage, the blood pressure should not exceed 150/90mmHg. If the patient has no target organ damage and is able to tolerate it, it is best to achieve a blood pressure of 130/80 mmHg or less. Because hypertension can cause damage to the heart, brain and kidney blood vessels. Therefore, it is very important to control blood pressure, especially because many people in China have a relatively low awareness and poor control of hypertension. The economic burden of the country and the physical disease burden of patients caused by hypertension is relatively heavy, and elderly people over 60 years of age need to seek medical attention as soon as their blood pressure exceeds 140/90mmHg.