The following article has as main objective to demonstrate the importance of implementing a digital repository in the research about the bibliographical patrimony recovery in six public libraries in municipalities located in the department of Antioquia, Colombia such as Andes, el Carmen de Viboral, Puerto Berrío, Sonsón, Turbo and Yarumal. The concept of bibliographical patrimony appears briefly in the article and the institutional and digital repositories are approached as an analytical and alternative category for the recovery, organization and dissemination of the patrimony information.