This study is aimed to attempt conceptualization of social exclusion of disabled people which is needed to develop scale that can measure subjectively social exclusion of disabled people. To do so, this study comprehensively compare and analyze history of disabled people, research on the actual condition of disabled people that can show specialty of them more variously, and literature view about social exclusion and social exclusion of disabled people. The results show that social exclusion of disabled people is characterized by concealment, additive effect and difference besides dynamics, multi-dimensionality, and relationship. Especially, relationship is the key point of social exclusion of disabled people. Also, there are not only existing areas of social exclusion, but also discriminatory areas about social exclusion of disabled people such as social relationship, social attitude, marriage, gender, right to access and mobility. Based on the results, the concept of social exclusion of disabled people can be defined as restriction of opportunity for achieving power and participation in a variety of areas of life including marriage, gender, right to access and mobility, by a breach between a society where non-disabled people are centric and disabled people. The results of this study will be applied as a crucial basic material to develop subjective social exclusion scale of disabled people.