Under normal circumstances, if a patient has nausea and vomiting accompanied by increased blood pressure, the patient is considered to have hypertensive crisis, malignant hypertension, or even hypertensive encephalopathy causing increased intracranial pressure. At this time, the high pressure of blood pressure is 180mmHg and low pressure is above 120mmHg, the patient will have nausea, jet-like vomiting, the vomit is stomach contents, the application of conventional antiemetic drugs patients can not have significant improvement, accompanied by obvious dizziness, headache, blurred vision, blurred vision, transient black haze in front of the eyes, vertigo, and in severe cases, there will be a transient loss of consciousness. Once the above situation occurs, acute cerebrovascular accident should be considered. At this time, we must quickly come to the hospital, improve the head CT, nuclear magnetic, electrocardiogram and other related examinations, and give cranial protection while slowly lowering the pressure according to the degree of target organ damage.