The purpose of this study was to create a model of recognition change to show how parents understands the behavior of children with pervasive developmental disabilities. Interviews were conducted with a parents of child with pervasive developmental disabilities, having them recount the state of their child from birth to the present day and their feelings about their child’s growth. After analyzing the content of the interview using the Modified grounded theory approach, 10 categories were generated from 23 concepts, which were ultimately compiled into 5 category groups. The results showed that the parents’ recognitions changed in accordance with the child’s growth. However, interpreting their child’s behavior (i.e., Why do the children take such a behavior?), discovering issues, and realizing the growth of and changes in their child were continuously experienced. Although the parent has anxiety and psychological fatigue for the child care continuously, such feelings were seen to decrease as their connections with social resources changed the parents’ recognitions. Consequently, they recounted future prospects regarding their family.