Today s reality demands that educators of the faith take new steps in search of catechetical renewal, which requires converted and well-prepared proclaimers. Initiation into Christian Life with catechumenal inspiration is a good proposal for transmitting the faith in today s world. Priests, as collaborators in the Episcopal ministry, are the first educators of the faith in a community, above all because of the mission they carry out. The material object of this research is the catechetical dimension in the formation of future priests. From a formal point of view, our objective will be to analyze how the catechetical formation of seminarians has been carried out, mainly from the perspective of the paradigm of Initiation into Christian Life and from the reflection of the Magisterium of the Church, in the documents published since the Second Vatican Council on priestly formation. Thus, the scope of this work is to explain the importance of catechesis in the formation process of candidates for priestly ministry, with a view to developing the mission of future priests. To this end, we will address the reality in which the context of priestly formation takes place, considering the challenges that challenge the mission of future priests, in order to establish a new configuration for their performance in the face of the paradigm of catechesis at the service of Initiation into Christian Life: forming missionary disciples in community.