1, more pseudohypertension and white coat hypertension; 2, increased systolic blood pressure, increased pulse pressure, simple systolic hypertension is common; 3, blood pressure fluctuations, blood pressure “morning peak” phenomenon increased, hypertension combined with postural hypotension and postprandial hypotension increased; 4, common blood pressure circadian rhythm abnormalities manifested as “non-spoon” or “super-spoon”, resulting in increased risk of target organ damage such as heart, brain and kidney; 5, the application of long-acting, smooth antihypertensive, safe, less adverse reactions to drugs as the first choice of treatment, elderly hypertensive patients emphasize the use of calcium antagonists.