Standard blood pressure values are generally less than 120mmHg systolic and less than 80mmHg diastolic is the normal standard blood pressure. 1, blood pressure if greater than 120-139mmHg systolic, diastolic pressure in the case of 80-89mmHg belongs to the normal high value, also belongs to the normal range. 2, when the diagnosis of hypertensive disease systolic pressure to be greater than or equal to 140mmHg, diastolic pressure greater than equal to 90mmHg, can be diagnosed as hypertensive disease. There is a classification of hypertension disease, grade 1 hypertension is systolic blood pressure in 140-159mmHg, diastolic blood pressure in 90-99mmHg. grade 2 hypertension systolic blood pressure in 160-179mmHg, diastolic blood pressure in 100-109mmHg. grade 3 hypertension is generally systolic blood pressure greater than or equal to 180mmHg, diastolic blood pressure greater than or equal to 110mmHg.