The treatment of high blood pressure in late pregnancy is as follows: 1. Rest for at least 10 hours a day, maintain sedation, and do not limit the amount of salt and fluids for pregnant women with less severe edema, while those with severe edema need to limit the amount of salt; 2. For pregnant women with blood pressure > 140/90 mmHg or with previous chronic hypertension combined with pregnancy and taking antihypertensive medication, take oral antihypertensive medication to lower blood pressure. Treatment should be sought at a hospital.