(Disclaimer: This article is for scientific purposes only. To protect patient privacy, the relevant information in the following content has been processed.) Abstract: This is the presentation of a 2-year-old male child who is basically non-verbal at present, only calling his father or other parents briefly, and able to speak short sentences but no more than 5 words. He is usually playing by himself and basically does not communicate with others. After assessment and medical history, the child was diagnosed with autism with developmental delay. After specialized rehabilitation treatment, he was able to communicate and play with people around him, and his personality was more active than before. The treatment plan is to strengthen the behavioral training at home and combine it with professional rehabilitation training. One afternoon, the parents brought their child to the clinic, complaining that the child was supposed to start kindergarten in September this year, but so far the child could not speak normally and would only speak in short sentences, such as wanting to eat and play, and would call his father, but sometimes it felt like he was calling unconsciously. He usually likes to play with himself, and often does not respond to family calls. He was given a full battery of neuropsychological tests, including the Gesell test to assess neurodevelopment and intelligence, the Early Language Development Process Scale and the Symbolic play test to assess language development, and the CHAT to assess the risk of autism. The child’s mother described the child as a late talker as a child, and the mother’s immediate family had relatives with similar withdrawn behaviors or language application difficulties. Based on the child’s medical history and systematic evaluation, a diagnosis of childhood autism with developmental delay was made. The treatment of this disorder usually involves family therapy and behavioral interventions, including the development of an educational program based on the child’s current true developmental age level. For example, if the child’s speech and language development is only at the age of 1, the child should be taught from the beginning as if he were a 1-year-old child, and should be guided very slowly and gradually to achieve results, so as to eventually achieve self-care, independence and improved quality of life. At the same time, the child can also go to a professional rehabilitation and learning institution for targeted training, so that the child can contact and learn from other children who are close to his developmental level, which can also enable the child to adapt better and avoid the development of low self-esteem and isolation. The patient was instructed to follow up with the clinic after six months of rehabilitation training. The child’s parents brought the child to the follow-up clinic after six months through family behavioral intervention training and professional rehabilitation training, and after examination, the child showed significant improvement compared with the previous visit. The parents described that the child was also more harmonious with other children in the rehabilitation institution, and was able to find his own buddies and play together, and learned to play simple multi-player games, and gradually mastered the ability to take care of himself. The patient’s condition has been effectively improved by the comprehensive diagnosis. The patient’s condition has been effectively improved after treatment, I am very happy for the patient, but we still need to pay attention to the following points: 1, the child is relatively young, early intervention and active treatment, and continue to adhere to long-term, the symptoms will be significantly improved; 2, parents should make gentle actions to adapt to the child, and actively communicate with the child, talk to the child, can kiss and hug the child, more accompany the child, so that the child has a sense of dependence, adapt to the family environment. The parents should make gentle gestures for the child to adapt to the family environment. Parents should also consciously interact with the child at home and guide the child to speak more, so that the child can express more of his or her demands through speech. If the child does not improve significantly, he or she can go to the hospital for intervention and treatment with the help of a doctor. V. Personal insight Childhood autism is not a highly prevalent disease, but the incidence has been increasing in recent years. Some children may be late in speaking or introverted, but they are not taken seriously by their parents and are not treated in time. Therefore, it is necessary to strengthen the knowledge and popularization of the disease to improve the parents’ understanding of the disease, so as to better prevent and identify it. Parents should observe the child’s condition and be more vigilant if the child is obviously different from other children. If necessary, parents should visit the child health department to avoid delays. In daily life and parenting, it is important to consciously communicate with the child, play games and communicate more with the child, and guide the child to speak, as this will help the child’s neurological and language development.