The normal values of blood pressure should be less than 140 mmHg for systolic blood pressure and less than 90 mmHg for diastolic blood pressure. 70 years old people can relax the normal values of blood pressure by 10 mmHg in order to prevent insufficient perfusion of tissues and organs, especially cerebral insufficiency of blood supply, and there are some literatures which report that for every 10-year increase in the age of 60 years old people, the normal value of blood pressure can be relaxed by 10 mmHg. 70 years old people can control their normal blood pressure by less than 150 mmHg. Normal blood pressure in the elderly can be controlled at less than 150mmHg, low pressure less than 100mmHg. If there are other diseases, such as coronary heart disease or diabetes, it is necessary to control blood pressure strictly according to the normal blood pressure value. Once the blood pressure is out of the normal range, oral antihypertensive drugs should be taken regularly. Older elderly people with high blood pressure, often with elevated systolic blood pressure is the main, at this time the more suitable antihypertensive drugs are calcium antagonists, if the stubborn systolic blood pressure is elevated, can be appropriate joint diuretics.