Pregnant women with high low pressure, i.e. high diastolic blood pressure, can be improved by moderate exercise and reasonable diet if it remains below 90 mmHg. If a pregnant woman has a diastolic blood pressure ≥ 90 mmHg measured at least 2 times in the same arm, she can be diagnosed with gestational hypertension and needs to be treated with medication according to the specific situation. Pregnant women with gestational hypertension can be treated on an outpatient basis. In order to prevent serious maternal and child complications such as eclampsia, cardiovascular and cerebrovascular accidents and placental abruption, they should be treated with reasonable medication. 1. antihypertensive: pregnant women commonly take oral antihypertensive drugs to lower their blood pressure, including labetalol, nifedipine and methyldopa, etc. Pregnant women need to take them under the guidance of a doctor in order to avoid blind medication affecting fetal development; 2. antispasmodic: if the diastolic blood pressure of a pregnant woman is ≥ 90 mmHg 90mmHg, and accompanied by proteinuria ≥ 0.3g/24h or random proteinuria appears, accompanied by dizziness, nausea and other symptoms, can be diagnosed as severe pre-eclampsia, can apply magnesium sulfate control; 3, sedation: diazepam, sodium phenobarbital can relieve pregnant women’s mental tension, anxiety symptoms, improve sleep, when the application of magnesium sulfate is ineffective or contraindicated, can use sedative drugs. Pregnant women with hypertension, in the use of drug therapy, need to be combined with moderate exercise, reasonable rest, low salt and low fat diet and other measures to improve, for the reduction of blood pressure has a certain role.