Joseph Ratzinger s eschatology is the main theme of this dissertation. It seeks through the analysis of the author s eschatological writings to present part of his contributions to the recurring debates on eschatology in the 20th century. To do this, it was necessary to study and present a historical overview of eschatology and its characteristic developments over the centuries. Subsequently, the writings and homilies of Ratzinger that were directly related to the doctrine of the last things were analyzed, with emphasis on his most important theological formulations from these. In these analyses, the focus was on the positions adopted by Ratzinger as his investigations intensified. It was also dedicated to examining the relationship between Ratzinger and the historical development of the subject, with space for observing the evolution of his thought. The author s distinctive aspects and contributions to the debate on eschatology were presented.