Our study has as general objective the analysis of the way in which Ștefan Bârsănescu (1895-1994) analyzes the process of constituting pedagogy as a specialized science in the study of education, training, education. At this level, the author, asserted at the level of modern (interwar) and postmodern / contemporary pedagogy (after 1960-1970), considers the epistemological unity of pedagogy that can be ensured by elaborating and articulating the fundamental concepts of pedagogy that define the object of specific study and specific research methodology. The highlighting of the quality of Ștefan Bârsănescu, as a representative of philosophical pedagogy, affirmed in the modern (interwar) and postmodern, contemporary historical era (after 1960-1970) and the rearrangement of Ștefan Bârsănescu's work from the perspective of the history of pedagogy and pedagogy history.