High functioning autism is defined as a child with a relatively high level of intelligence in the middle of children with autism. This is because about half of the children in the group diagnosed with autism are low in intelligence, while half are relatively normal in intelligence. High functioning autism, on the other hand, is a child with a relatively high level of intelligence. When a child is diagnosed with autism, the overall developmental level of the child is also looked at to confirm whether the child has a low level of intelligence in addition to the diagnosis of autism, so that guidance can be made for future training of the child. Generally speaking, training for children with high functioning autism is much more effective than training for children with low functioning autism. High-functioning autistic children are able to receive a relatively normal academic education for a relatively long period of time. However, when the child is in junior high school, the problem will begin to emerge and the child will find that he or she lacks the skills and communication skills to communicate with others, and even behaves inappropriately, resulting in inconsistent behavior patterns with other children and problems with communication. Therefore, the diagnosis of high-functioning autism is often delayed, rather than being detected by parents at an early age, i.e., during infancy, and the child is often seen in the hospital only when there are obvious problems with interpersonal communication and inappropriate behavior.