However, he does not speak, is stubborn and willful, does not listen to instructions, does not respond to others’ calls, does not do what he wants, is hyperactive and restless, does not get along with others, does not see eye to eye, and especially likes TV commercials and weather forecasts. The parents were very anxious and paid much attention to the child’s education, but the child did not follow the parents’ guidance at all. Childhood autism is a comprehensive mental developmental disorder that develops in early childhood and is characterized by impaired social interaction, impaired speech and language development, a narrow range of interests, and a stereotypical, rigid behavior. In addition, these children may have sensory abnormalities, such as a delayed response to pain and an overly sensitive or dull sense of hearing or vision. About 3/4 of the children are mentally retarded, and some of them may have certain special abilities along with general mental retardation, such as unusual memory for routes, numbers, place names, names of people, and the ability to extrapolate and speed calculate dates. The etiology and pathogenesis of autism are still unclear and may be related to genetic, neurobiological and psychosocial factors. The disease has a chronic course and the prognosis is mostly poor. If left untreated, about 60% of children will not be able to take care of themselves in the future. Its recovery is related to the severity of the disease, IQ, speech development and training status. There is no specific treatment method yet, but domestic and international experience shows that a comprehensive treatment method based on education and training is effective for children with autism. The key to rehabilitation is early detection, early diagnosis and early intervention. If parents find that their children speak later than their peers, do not imitate, refuse to learn, are stubborn and capricious, difficult to manage, and do not get along, they must go to the child psychology department in time to undergo the necessary examinations, so that the diagnosis can be confirmed as early as possible and the best treatment period can be avoided.