Sudden increase in blood pressure at night should be observed to find out the cause of the increase in blood pressure, and if necessary, temporarily add short-acting antihypertensive drugs to the treatment. Sudden increase in blood pressure at night should be aware of the degree of elevation of blood pressure, mild elevation does not require special treatment. It is important to find out the cause of the rise in blood pressure. The patient may be mentally stressed, overly anxious, etc. It is important to control emotions and blood pressure levels will gradually improve after the triggers are removed. For patients with significantly elevated blood pressure levels, short-acting antihypertensive medications, such as captopril and nifedipine, can be given to temporarily control blood pressure levels. At the same time, attention should be paid to strengthening the monitoring of blood pressure, and if the blood pressure level continues to rise, the original treatment plan should be adjusted. Patients whose blood pressure level rises suddenly at night, if the symptoms recur, should go to the hospital in time and adjust the treatment plan under the guidance of the physician.