The normal range of blood pressure for 70 to 80 year olds is in the range of 90 to 139 mmHg systolic and 60 to 89 mmHg diastolic. The normal range of blood pressure is not related to age. As age increases, the elasticity of blood vessel wall deteriorates, blood pressure will increase slightly, but should still be within the normal range. 70~80 years old blood pressure normal range should be consistent with the normal adult blood pressure reference value, 70~80 years old normal systolic blood pressure should be in the range of 90~139mmHg and diastolic blood pressure is in the range of 60~89mmHg, pulse pressure is in the range of 20~40mmHg. Normal blood pressure range if the systolic blood pressure 90~119mmHg and diastolic blood pressure 60~79mmHg is called normal blood pressure; if the systolic blood pressure 120~139mmHg and/or diastolic blood pressure 80~89mmHg is called normal high value blood pressure, the latter suffering from hypertension increased risk. People aged 70 to 80 are prone to hypertension or systolic hypertension, and are advised to review their blood pressure regularly and consult a doctor if they have abnormal blood pressure.