Аннотация:This article is the introduction to the special issue ‘Sociology and psychology: what intersections?’ In addition to presenting the articles included in this issue, the present text outlines the general stakes of interdisciplinarity between psychology and sociology. It argues that interdisciplinarity requires a specific conversion work between disciplines and that, in the particular case of sociology and psychology, importations and exportations of concepts and ideas have existed since the beginning of these disciplines.