This thesis deals with the theme-centred interaction (TCI) as a university-didactic theory. The historical development of university didactics is gone over starting at the ideal „Bildung durch Wissenschaft“ (Humboldt) till this day. Further to sustain the generated theory theoretical humanistic, systemic constructivist as well as university-didactic draughts and models are referred to. Besides, a comprehensive competence concept is discussed to ascertain the educational concept which is aimed beside professional also at personal and social competences as well as the ability to judge. Competence orientation in this sense allows a linking of the educational ideal of Humboldt with current university educational policy and therefore the Bologna reform. In addition, the theme-centred, university-didactic theory is also backed up empirically and thus can serve to innovate university-didactic theory at three levels: (1) Epistemological convictions and the educational understanding of university teachers are decisive for their attitude and position. (2) The attitude and position of TCI university teachers is stamped by attention, presence, selective authenticity and esteem. These university teachers have in view themselves as well as the professional and personal development of the students. This position works against a university disposition which is strongly marked by competition and didactically technocratic superficial knowledge. (3) This attitude and position corresponds again with the concrete didactic creation of teaching-learning processes with the specific balance belonging to TCI consisting of the subject or theme, the person, the social learning situation as well as the environment. To sum up, university didactics may not get stuck at the methodical level or the level of the models, but it needs a sound didactic theory, e. g., the theme-centred university didactics to fulfil both demands: the Bologna reform as well as „Bildung durch Wissenschaft“.