From the neurophysiological point of view, the brain tissue of infants and young children is in a period of vigorous growth and development, with a brain weight of 370 grams at birth, twice as much as that at birth at 6 months, close to 60% of that of adults at 1 year, and close to the brain weight range of adults by 3 years of age. within 3 years of age, the brain function is highly compensatory and malleable. If accurate evaluation and timely scientific treatment are given during this period, the damaged brain tissues can be compensated to the maximum extent in the process of continuous development. The younger the age, the greater the possibility of recovery, so that the affected child can catch up with normal children in all aspects of development. Even in severe cases, the degree of disability can be greatly reduced, so that the child can enter school, take care of himself in daily life, and return to society. If the child does not receive timely rehabilitation treatment, there is a high risk of delayed motor development, delayed language development, epilepsy, and even mental retardation, cerebral palsy, and abnormal behavior, resulting in lifelong disability, which brings a great burden to the family and society. Therefore, it is important to start intervention treatment for children with brain injury as early as possible.