Autism spectrum disorder (ASD) is a mental developmental disorder that behaves as communication difficulty, limited interests and activities, repetitive patterns of behavior, etc. ASD is estimated to affect about 1% of people (62.2 million globally) as of 2015. According to the statistics, there are about 70,000,000 globally, and more than 13,000,000 in China, which including 3,000,000 young patients under 14 years, and increasing about 200,000 per year. The early rehabilitation training for child patient could affect the ASD patient’s viability improvement and care cost reduction in their later life. A new virtual reality (VR) app, VR-ASD, was developed to reduce the cost and training skill requirements to the trainer, and improve the efficiency and quality of ASD training for child ASD patients. Based on the preliminary study, we state the prime principles, chief framework, and typical functional models of the app, VRASD, with details about operations and skills.