In general, it is difficult for others to understand the peculiar manifestations of Asperger's syndrome(AS) in social and school situations, so AS patients are often met with misunderstanding and negative assessments. As a result, AS patients face difficulties in developing a positively organized concept of self. In the present study, we recruited seven adolescent patients with AS and conducted a sentence completion test (SCT) in addition to a semi-structured interview focused on the following four problems: 1) Difficulty with personal relationships, 2) Differences between oneself and others, 3) Experiences of being bullied, 4) Current status of medical therapy or counseling. The results indicated that all of the patients had insufficient awareness that their "experiences of being bullied" and the "differences between oneself and others" were caused by their own disorder. They also did not understand that this insufficient awareness might contribute to their negative concept of self. However, some of them had developed a more positive concept of self and self-awareness, skillfully adapting to their social environment with professional psychosocial support and familial (especially maternal) support, and having participated in social activities such as school attendance and employment. This emphasizes the importance of promoting the formation of positive self concept and self-awareness for AS patients.