For the vast majority of newborns, the normal value of oxygen saturation is between 90% and 97%. If a child’s oxygen saturation is significantly low, it can cause tissue hypoxia. After the child is hypoxic, it can cause systemic damage, such as the development of ischemic-hypoxic encephalopathy, which leads to edema in the brain and affects brain development, resulting in complications such as mental retardation. If a child’s oxygen saturation is very low, parents should promptly administer oxygen to the child and treat the primary disease. If the child is caused by pneumonia, treat the pneumonia promptly. If it is caused by respiratory distress, the child should be given prompt application of pulmonary surface active substance. The normal value of oxygen saturation in newborns should be at least greater than 90%, often between 90% and 97%.