Preventive measures for gestational hypertension include: 1, exercise: weight control; 2, rest: if you do not get enough sleep and have anxiety, you should take appropriate sedative drugs and get enough rest; 3, diet: you should eat reasonably, a body mass index greater than 35 during pregnancy can lead to an increased incidence of hypertension; 4, medication: if you have a history of gestational hypertensive disease, you should take at least 1000mg of calcium daily, and you can take aspirin before pregnancy to prevent gestational hypertension; 5, preconception checkup: people with a history of gestational hypertensive disease, genetic history, not easy to get pregnant, and high body weight should do preconception checkup.