1, secondary hypertension such as sleep apnea hypoventilation syndrome, endocrine hypertension, etc., give etiological treatment. 2, those taking short-acting drugs, change to long-acting antihypertensive drugs or add medium-acting antihypertensive drugs in the afternoon. 3, cardiovascular disease attack, must control cardiovascular disease attack in order to protect the patient. 4, neurogenic recumbent hypertension with seated hypotension, should be quickly seen in the hospital.