In the case of hypertension emergency, it is necessary to reduce blood pressure quickly. The purpose of rapid hypotension is to reduce blood pressure to a level that can prevent the progressive damage of target organs such as brain, kidney and heart as soon as possible, but it will not lead to insufficient perfusion of important organs. Intravenous administration is most suitable for changing the dosage of drugs at any time. Commonly used intravenous drugs include sodium nitroprusside, nitroglycerin, nicardipine and urapidil. But what if there is a hypertensive emergency in a non-medical place? On the one hand, first take diazepam, diazepam or nitrodiazepam 1 sedative to keep calm, then take propranolol, nitrendipine, nitroglycerin or captopril under the tongue, move the patient to a ventilated and quiet place, rest in bed, and give oxygen if possible. On the other hand, it was rushed to the hospital for treatment.