The 2017 THB Champions League is the top level football competition in Madagascar. It started on 1 September 2017 and ended on 12 November 2017.
24 teams participated in the tournament: all 22 regional league champions and the runner-ups of Itasy (who provided the 2016 league and cup champions) and Analamanga (who provided the 2016 runner-ups in both championships). The runner-ups were COSFAP Antananarivo and RTS-Jet Mada. There were no withdrawals in this season, every team played the tournament.
The 24 qualified teams would be separated in 4 groups of 6 teams, where all teams play against each other once, then the 3 teams with the most points in each group would be qualified to the second phase.
The 12 qualified teams from the first phase would be separated into 2 groups of 6 teams, where all teams play against each other once, then the 2 teams with the most points in each group would be qualified to the Poule des As.
The 4 qualified teams would play against each other twice (home and away) then the team with the most points becomes Malagasy champions.
In round 5 on September 10, AS Espoir Ambovombe awarded a 3-0 win to JSA.