Infancy itself is the high incidence of iron deficiency age, the baby in the mother’s pregnancy, if the iron supplementation is insufficient, or in pregnancy when the mother suffers from diseases that are prone to iron deficiency, such as gestational diabetes mellitus, resulting in babies born with insufficient iron reserves in infancy will be deficient in iron; In addition, some babies are born with twins, multiple births, or premature births, low birth weight, these children will also be due to the insufficient reserves of iron, caused by the Iron deficiency in early life. In addition, it is currently advocated that children should be given complementary foods at around 6 months of age. When adding complementary foods, parents are afraid that their children will eat too much, so sometimes iron-rich foods are added relatively late, such as red animal foods. In fact, in the diet, iron mainly exists with red meat and rice flour, this complementary food in the unsuitable time to add will also affect the absorption of iron, resulting in iron deficiency anemia. In addition, babies grow and develop relatively quickly before the age of 2, and rapid growth and development is also one of the causes of iron deficiency. Finally, the main parents in the adjustment of the child’s dietary structure, there are some concepts need to be updated, parents think that the child eating meat is easy to eat, the child is very big still do not add meat food, in fact, require the child to be born at the latest 10 months should be added to the red animal food.