this article traces the categories of Adorno's moral project from the barbarism experienced in the nazi concentration camps during the Second World War. For this, the author uses the strategy of thinking philosophy from the model of the Critical Theory of The Frankfurt School. This novel project orients to the man or any idea of philosophy and ethics with sense, taking care of new categories of the factual reality. Specifically, Adorno builds a moral project that has as its foundation, first, a new framework for metaphysics and anthropology from Auschwitz and, second, aimed at preventing new expressions of barbarism like this from repeating themselves. Adorno exposes the ethical categories in Meditations on metaphysics in his work Negative Dialectics.