Patients with hypertension during pregnancy must pay attention to controlling their own diet. The diet should be light, low salt, low-fat, low calorie diet. Do not eat high-fat, high-calorie food. It is suggested to eat more foods rich in potassium, such as sweet potatoes, tomatoes, potatoes, bananas, cantaloupes or dried fruits. Food rich in potassium is an important part of lowering blood pressure. It is recommended that pregnant women take two to four grams of potassium every day. Hypertensive disorder complicating pregnancy is a disease specific to pregnancy, including hypertension during pregnancy, pre eclampsia, eclampsia, chronic hypertension with pre eclampsia and chronic hypertension. Its etiology is related to genetic susceptibility, immune maladjustment, placental ischemia, oxidation, stress, etc.