Iron deficiency is a common phenomenon in infants, and in severe cases, it can cause anemia. For iron deficiency in 6-month-old babies, iron-rich foods can be consumed, and if anemia is caused, oral iron therapy is required. It is usually believed that breast milk and cow’s milk contain less iron, infants are prone to iron deficiency caused by insufficient iron intake is a more common phenomenon in infants, and in severe cases, anemia can occur, and even affect their growth and development. For 6 months baby iron deficiency, need to decide according to the degree of its iron deficiency, such as has not yet caused anemia of the baby, can be adjusted through the diet to increase iron intake, the age of the baby has gradually started to add complementary foods, can use high iron rice flour, pig liver powder, spinach and other foods, but need to pay attention to should be added according to the baby’s digestive tract tolerance. For iron deficiency has caused anemia of the baby, need to use iron for standardized treatment, usually using oral bivalent iron salt preparations (such as pediatric ferrous sulfate syrup, ferrous fumarate particles) for treatment, the correct supplementation of iron treatment 1 ~ 2 weeks after the gradual increase in hemoglobin, treatment for 3 ~ 4 weeks to reach normal, to be normal hemoglobin need to continue to take iron for 6 ~ 8 weeks to increase the iron storage. All of the above drugs need to be used under the guidance of a physician, and it is recommended to actively seek medical attention and intervention by a specialist.