The blood pressure of a 70-year-old man is normal at 90~139mmHg systolic and 60~89mmHg diastolic. The normal range of blood pressure is 90~120mmHg systolic, 60~80mmHg systolic. the normal high range of blood pressure is 120~139mmHg systolic, 80~89mmHg diastolic. for 70 years old, if the systolic blood pressure is in the range of 90~139mmHg, and diastolic blood pressure is in the range of 60~89mmHg, then it is a normal situation. It is due to the fact that with age, the elasticity of the arterial wall of the 70-year-old is relatively low, and the blood pressure in the normal high value range is also considered normal, so as to avoid the blood pressure is too low resulting in insufficient blood supply to the brain, but is not conducive to good health. It is recommended that 70-year-olds measure their blood pressure regularly so as not to raise or lower it. Once obvious dizziness, fatigue and other symptoms, need to consult a doctor in time. In daily life, the elderly can exercise appropriately and maintain a healthy weight.