The present paper studies the problem of a philosophical theology in Heidegger’s thought, trying to show how it guides and structures his ontology in depth. Thus, after a brief presentation of the author’s theological training and the way he diverges from it through criticism of onto-theology, it analyzes the central questions of secularization and nihilism, which characterize the present time from an onto-historical point of view. They determine the program of a new philosophical theology on a phenomenological basis, which constitutes the key for a possible reading of the author.Neste artigo estuda-se o problema da teologia filosófica no pensamento de Heidegger, procurando mostrar-se como ele orienta e estrutura em profundidade a sua ontol...