In recent years, early support for preschool children with autism spectrum disorder (ASD) has been the focus of social attention. In this study, we report the results of an early support program, APPLE, for one preschooler with ASD. As a result of the implementation of this program, it was confirmed that the joint attention behavior and verbal behavior of the child who participated in the program became richer. In the future, it is necessary to verify the effectiveness of the APPLE program by increasing the number of children participated in this program.