The normal systolic blood pressure range for a ninety year old is 90 to 139 mmHg, while the normal range for diastolic blood pressure is 60 to 89 mmHg. Normal adults in the resting state of the blood pressure is usually stable, the normal range of systolic blood pressure is 90 ~ 139mmHg, the normal range of diastolic blood pressure is 60 ~ 89mmHg. With age, the human body’s arteriosclerosis, systolic blood pressure will also increase, so the ninety-year-old man’s blood pressure control range can be slightly wider, is generally considered to be in the 90 ~ 149mmHg that is considered ideal. The level of blood pressure is affected by a variety of factors such as heart rate, peripheral resistance, aortic and aortic wall elasticity and vascular volume. Therefore, in some pathological conditions such as aortitis and coronary atherosclerosis, blood pressure can be pathologically increased. In summary, regular daily measurement of blood pressure is conducive to the early detection of cardiovascular disease, and if the blood pressure is abnormal, it is recommended to go to a regular hospital as soon as possible for a definitive diagnosis, and standardized treatment under the guidance of the doctor.