Whether children can recover from brain nerve injury is determined by the location of the nerve injury, the degree of injury, and clinical symptoms, which can vary widely. Lighter nerve cell damage can generally be restored to normal, while more severe damage will leave varying degrees of sequelae. The brain is a complex organ that performs a variety of brain functions through processing and integration of its neuronal cells that process countless information in the brain night and day. Newborns are already born with almost all of their nerve cells, but only one tenth of their synapses and synaptic connections. Brain function does not depend on the absolute number of brain cells, but on the complex network directly established by brain cells, the material basis of which is synapses. The number of synapses per unit volume of the cerebral cortex can reach a peak at the age of three. Therefore, early intervention during the critical period of brain development, that is, comprehensive rehabilitation training, can make the brain structurally and functionally highly adaptable and reorganized, and improve the prognosis.