Routine iron supplementation is generally recommended in late pregnancy, and the specific supplementation dose depends on the anemia and ferritin status of the pregnant woman. Iron deficiency anemia is easy to appear in late pregnancy. Appropriate supplementation of iron-containing foods or taking iron supplements can enhance maternal nutrition and assist fetal growth and development. If anemia does not appear during regular follow-up examinations, iron supplementation may not be necessary. If iron deficiency anemia occurs in late pregnancy, pregnant women may experience dizziness, weakness, and in severe cases, the growth of the fetus may even be affected, leading to miscarriage. Pregnant women should go to the obstetrics department in time to check their anemia and take food supplements or pharmaceutical supplements according to the degree of anemia. In less severe cases, the pregnant woman should take iron supplements such as ferrous sulfate and folic acid tablets according to the doctor’s recommendation.