This study investigated how parents of people with autistic disorder were stigmatized by association with their disabled children and challenged the stigmatization, while caring for their children. This study employed the individual interviews involving 10 parents of people with autistic disorder who were members of self-help groups, and used Giorgi’s phenomenological method for analyzing the data. According to the analysis, parents with disabled children were belittled as if they were disabled people, and blamed for not disciplining their children appropriately in public places. Also, they were expected to play roles like “problem solvers” in supporting their children, being regarded as “deviants” among social relations in families, schools, and welfare agencies. Nevertheless, they challenged the prejudice that they should be blamed for disabilities of their children, by way of advocating ‘normality’ of their children and their own, and acquiring positive new self-identity. They blurred the lines between ‘normal’ and ‘abnormal’ about autism in their disability discourse. In addition, they gained the identity of competent practitioners in the disability field, enjoying their ‘normalized’ lives as ordinary citizens. This study suggested some mass education which is targeted for raising consciousness of anti-discrimination, kinds of guidelines and measures for promoting the anti-discriminatory practice of education and socal work professionals, and governmental efforts for developing quality service system for people with autistic disorder and supporting parental empowerment as disability professionals.