Hypertensive disorders in pregnancy are diseases specific to pregnancy, including gestational hypertension, preeclampsia, eclampsia, chronic hypertension complicating preeclampsia, and chronic hypertension. The incidence rate is 9.4% in China and 7%~12% reported abroad. This disease seriously affects the health of mother and child, and is one of the main causes of maternal and perinatal morbidity and mortality. Clinical manifestations: 1, elevated blood pressure, systolic blood pressure ≥ 17.3kPa (130mmHg), or diastolic blood pressure 12.0kPa (90mmHg) or an increase of 4/2kPa (30/15mmHg) compared with the pre-pregnancy can be diagnosed. 2, edema, clinically manifested as excessive weight gain, weekly increase of > 0.5 kg, lower limbs and abdominal wall edema, heavy cases of ascites, after rest edema does not subside. 3, proteinuria, should be selected clean mid-range urine as a specimen, urine protein in (+) or (+) or more, or 24-hour urine protein more than 5 grams is. 4, the patient consciously headache and dizziness, nausea and vomiting, blurred vision, epigastric pain. 5.Convulsive coma, which is the most serious manifestation of the disease, can occur in the prenatal period, during labor or postpartum. Convulsions, the patient performance face muscle tension, teeth closed, eyeballs fixed and look straight ahead, and then the overall muscle rectification, violent twitching, respiratory arrest, loss of consciousness, urinary and fecal incontinence, seizures frequent or persistent coma, often can die. The key to the prevention of this disease is to do a good job of health care during pregnancy, strengthen publicity and education, and understand the level of blood pressure. In addition to measuring blood pressure, each prenatal checkup should also measure body weight and check for the presence of protein in the urine. More attention should be paid to pregnant women with a family history of hyperemesis gravidarum, kidney disease, diabetes and excessive amniotic fluid, and multiple pregnancies. The number of prenatal checkups can be increased appropriately in order to pay close attention to changes in the condition. Once hyperemesis gravidarum occurs, it should be actively treated. The principle of treatment is to reduce blood pressure, control edema, prevent convulsions, and terminate pregnancy at the right time. First of all, we should let the patient rest in bed, give low-salt diet, keep quiet and avoid excessive light stimulation. If the blood pressure, especially the diastolic blood pressure is above 14.6kPa (1110mmHg) or convulsions occur, 25% magnesium sulfate should be given intravenously and can be combined with antihypertensive drugs such as hydrazinophenazidazine or lupronidazole. For severe hyperemesis gravidarum that has not improved after 24~48 hours of treatment, or the condition has worsened, or the placental function is obviously reduced, the pregnancy should be promptly terminated.