Multivitamins such as vitamin A, vitamin B (vitamins B1, B2, B6, B12, folic acid), vitamin C and vitamin E are required during pregnancy. Vitamin A plays a role in cell division, fetal organ and bone development and maturation, maintenance of the immune system and development of fetal vision, etc. The demand for vitamin A increases during pregnancy, and pregnant women are advised to take dietary supplements of vitamin A, and consume more vitamin A-rich foods such as carrots and animal liver. Vitamin E plays a very important role in the reproductive process. Lack of vitamin E in pregnancy may cause miscarriage, preterm labor, preeclampsia and fetal growth restriction. The increased need for vitamin D in pregnant women is due to the fact that fetal growth and development are completely dependent on maternal vitamin D levels, and maternal vitamin D-binding protein levels rise from the early stages of pregnancy in order to increase calcium absorption and decrease calcium excretion, and to accommodate the increased calcium needs of the fetus. Foods that contain a lot of calcium, such as milk, eggs, and shrimp foods, can be consumed during pregnancy. Folic acid supplementation, which is vitamin B9, is needed during the first trimester to help reduce the incidence of fetal neural tube malformations. Vitamin C and iron supplements are used to prevent and treat anemia in pregnant women. In addition, pregnant women should pay attention to the supplementation of trace elements, such as iron and calcium. During pregnancy, attention is paid to dietary nutrition to meet the supply of vitamins and trace elements. It is recommended to prepare for pregnancy during the preparation of any discomfort timely consultation with a professional gynecologist, healthy and safe preparation for pregnancy.