Generally suitable for children to take iron supplement oral solution, mainly include the following: first of all, ferrous succinate, ferrous succinate can play a good iron supplement effect, because children occur iron deficiency will cause iron deficiency anemia, there will be hypochromic small cell anemia. At this time, children often have a series of symptoms such as pallor, inattention, and weakness, and the application of ferrous succinate can correct these symptoms. Secondly, ferrous sulfate is applied to children. Ferrous sulfate can also play a good role in iron supplementation, but when applying iron supplementation oral solution, attention must be paid to the combination of adequate vitamin C, thus facilitating iron supplementation.