After a disability occurs, vocational rehabilitation is essential for promoting return to society and improving quality of life. To facilitate vocational rehabilitation, an effective counseling by human expert is essential. However, the number of the experts is not many. Thus, people with disabilities (PWD) have had difficulty in having proper vocational consultation service. To mitigate this problem, this study aims at developing a decision support system (DSS) to recommend appropriate jobs to PWD based on their characteristics. For doing this, the experts in disabilities, occupational research, and information systems participated in building the logic of the system. The DSS for scientific and quantitative vocational counseling enables job counselors to recommend appropriate occupations considering PWDs' characteristics.