The tournament consisted of 14 teams, with the winner representing Cavan in the Ulster Senior Club Football Championship.

[1] Ramor United were the defending champions after they defeated neighbours Castlerahan in the previous years final,[2] however Castlerahan exacted their revenge when dethroning them at the semi-final stage.

[3] Cavan Gaels regained their title, defeating Castlerahan by 0-13 to 0-8 in the final.

If teams are level on points and a place in the quarter-final is at stake, a Playoff will be conducted to determine who goes through.

The 3 winners will maintain their senior status for 2018 while the 3 losers will be relegated to the 2018 Intermediate Championship.