Shopping is a necessary skill in human social life, but autistic children may have difficulties and problems in every aspect of the shopping process even to adulthood. The shopping training system for autistic children, combined with ABA intervention therapy, adopts the principle of behavior shaping to design and develop autistic children's problems such as difficulty in concentration, rigid behavior, incorrect communication and expression, and ignorance of rules. Based on virtual reality technology, the autistic children's shopping training system uses simulated real shopping environment to gradually guide autistic children to interact with virtual environment and acquire shopping rules and key skills. Through the test of 5 3-5-year-old high functioning autistic children and 5 older autistic children, 90% of them can quickly adapt to the virtual environment, and 70% of them have significantly improved their shopping skills. 90% completed primary tasks and 30% completed some advanced tasks.