The treatment goal for hypertensive encephalopathy is mainly to rapidly reduce blood pressure to a reasonable range. Typically, intravenous antihypertensive drugs are administered to decrease blood pressure by 20%-25% within the first hour, followed by oral antihypertensives or continued intravenous treatment to further reduce it to a more reasonable level. Hypertensive encephalopathy often accompanies cerebral edema, and patients may experience increased intracranial pressure. At this point, it is necessary to administer dehydrating agents such as mannitol to treat the cerebral edema. If the patient experiences seizures, which can cause an increase in blood pressure or difficulty in reducing blood pressure, sedative anticonvulsant drugs must be administered to control the seizures. If the patient shows signs of heart failure, diuretic treatment should be initiated. Additionally, high concentration oxygen therapy under high pressure should be administered, which can be delivered through nasal cannula. If nasal oxygen therapy is ineffective, non-invasive ventilation or even intubation with invasive ventilation may be used to provide high concentration positive pressure oxygen therapy.