The following article is devoted to the organisation of cathesis in the diocese. Firstly, the diocesan Bishop’s office is presented, who is the first catechist and is the person who organises teaching in his diocese. Next, the diocesan curia is discussed, which is the tool for helping the diocesan Bishop in organising the catechesis. The Catechetical Office, which should be set up in every diecese, is particularly emphasised. The final part of the submission is connected with the organisation of the catechists’ education.