Parental education and training in the treatment of autism spectrum disorder have become important, because they prepare parents for the treatment plan, supplement insufficient treatment opportunities and help to generalize and maintain treatment effects. This study aimed to present the necessary elements of education and training models for parents of children with autism spectrum disorder, establish a system via which to maintain cooperation between parents and experts, and establish an operation plan for implementation in a public hospital. To this end, after a focused group interview with 4 experts, secondary written interviews were conducted with 13 parents of children with autism spectrum disorder and 17 experts from treatment fields and academia. The results of the main analysis were as follows. Regarding the current situation surrounding parental education and experience, limitations of single-study education, need for systematic and continuous parental education, and measures to increase the effectiveness of implementation were identified. In addition, regarding educational content and methods, opinions regarding children’s function and lifecycle priorities, structured education with practices that could be generalized to real life, and support plans considering parental psychological difficulties were established. Concerning the operational plan, a coordination system for training staff, capacity building, individualized planning and module utilization, long-term plans and promotions, and the central institute’s role in activating parental and professional networks were emphasized. These results are meaningful as useful basic data in securing practical support directions and establishing cooperative systems for parents of children with autism spectrum disorder in Korea.