A diocesan synod is necessary so that it could express the common concern for being the Church and being in the Church, the key manifestation of which is the concern for identification with it. And this can be reached only by communal reflection about who we are as the Church and what our tasks in this field are. In December 2016, the Bishop of Tarnów decided to convoke the 5th Synod of the Diocese of Tarnów. Before this Synod was inaugurated, it was preceded by a preparatory stage. Therefore, this article presents the following issues connected with this important synodal stage in the Diocese of Tarnów: the announcement of synod convocation, the aims of synod preparatory stage, the establishment of the Preparatory Commission and its tasks and, finally, the results of works performed during the pre-synodal stage will be presented.