A blood pressure of 170 is serious and requires standardized antihypertensive treatment. If the systolic blood pressure is 170mmhg, if the diastolic blood pressure is less than 110mmhg, then it is the second level of hypertension, and the diastolic blood pressure is more than or equal to 110mmhg, then it is the third level of hypertension; if the diastolic blood pressure is 170mmhg, then it is the third level of hypertension. The above two conditions are more serious, if not treated in time, cardiovascular and cerebrovascular diseases and other accidents such as cerebral hemorrhage, etc., blood pressure at a relatively high level for a long time will also damage the function of organs, which can cause hypertensive heart disease, retinal damage, etc.. Hypertensive patients first need to adjust their lifestyles, avoid emotional stress and excitement, pay attention to low-salt and low-fat diets, quit smoking, and exercise appropriately, and need to consult a professional doctor for oral antihypertensive medications such as nifedipine or intravenous antihypertensive medications such as uradil, so as to avoid the occurrence of cardio-cerebral and cerebral vascular adverse events.