Iron deficiency anemia in pregnant women should be taken seriously and treated actively. Mild iron deficiency anemia in pregnant women has no obvious effect on the fetus in the early stage; however, in the case of moderate-to-severe anemia, the supply of oxygen and nutrients through the placenta is insufficient to meet the growth requirements of the fetus, which may easily result in fetal growth limitation, fetal distress, preterm delivery or stillbirth, and at the same time, it also constitutes a certain impact on the fetus in the long term. Generally speaking, insufficient intake or malabsorption of iron by pregnant women can cause anemia. Because during pregnancy, the fetus needs a lot of nutrients in the process of growth, if the nutrition is insufficient, it will lead to slow growth of the fetus, and in serious cases, it will lead to the cessation of fetal development. Therefore, if anemia occurs during pregnancy, it should be corrected in time. Mild anemia in pregnant women can be improved by dietary adjustments, eat more pork liver, lean meat, eggs, milk and egg yolks, and also supplement some fresh vegetables and fruits. If the anemia is severe, it is necessary to take oral iron supplements under the guidance of the doctor, together with vitamins for treatment, because vitamins can increase iron absorption and rapidly improve the symptoms of iron deficiency anemia, so as not to affect the fetus.