With the recent trend of art therapy in the field of mental health counseling, art therapists' attitudes toward psychiatric disabilities have been a talking point in research. Attitude is the most critical issue in the social model of disability as it relates to mental health, whereas the medical model focuses on prescriptions and treatments. In order to educate art therapists regarding appropriate attitudes toward psychiatric disabilities to the art therapists, basic research comparing students who major in art therapy and those who major in other fields is necessary. In this study, attitudes toward the psychiatric disabilities of students in the department of art therapy were compared with those of students in other departments in universities in Seoul, South Korea. The students who are in the department of art therapy were more positive than the students in other majors overall, especially in the subscale of authority and unsophisticated benevolence. There were no significant differences on other subscales such as mental hygiene ideology, social restrictiveness, or interpersonal etiology. Knowledge-based education had no effect on their attitudes toward mental illness. Based on the results of this study, recommendations for the curriculums of art therapy were discussed to educate art therapists regarding appropriate attitude toward clients with mental illness.