The authors analyzed the current understanding of the ethnic identity of the person and ethnic identity as complex human mental processes referring to a specific ethnic group. There are underlined methodological approaches to the study of ethnic identity cards, namely ontologic-historical, epistemological, existential-humanistic, ethno-political, socio-cultural, individual-typological, vitacultural (meta-approach), and spiritual-religious. There are underlined the need for further development of the conceptual problems position in postmodern philosophy.