The aim of treatment of high blood pressure during pregnancy is to control the condition, prolong the gestational weeks and ensure the safety of the mother and child. It can be divided into general treatment, antihypertensive treatment, antispasmodic, sedation and so on. 1. General treatment: ensure sufficient sleep, ensure sufficient protein, no need to restrict salt intake. 2. Antihypertensive: high blood pressure during pregnancy can be treated with antihypertensive therapy under the guidance of physicians to prevent eclampsia, cardiovascular and cerebrovascular accidents and placental abruption and other serious maternal and child complications. Commonly used antihypertensive drugs are labetalol, nifedipine, nimodipine, phentolamine, methyldopa, nitroglycerin and so on. 3. Antispasmodic: If the blood pressure is high during pregnancy, magnesium sulfate can be used to antispasmodic, prevent the occurrence of eclampsia. 4. Sedation: Diazepam and other sedative drugs can be taken under the guidance of a doctor to relieve the tension and anxiety symptoms of pregnant women, improve sleep, and can prevent eclampsia. Pregnant women with high blood pressure must go to the hospital in time to prevent the development of eclampsia, prolong the gestational weeks, and protect the safety of the mother and fetus.