This article studies the trayectory of Germán Domínguez Gajardo within the cultural institutionality during the chilean civic-military dictatorship, specifically between 1973 and 1990. For this, delves into his biography and his work within different cultural entities, mainly through official and press documents of the period. It is thus proposed that Domínguez played a key role not only as a adviser in the dictatorship, being involved-and leading-some of its entities, but also thanks to his management and, in particular, to his proposal for cultural extension, that the cultural institutionality underwent a considerable change at that time.