A total of 12 teams competed in the league: 8 sides from the 2014 season and two promoted from the 2014 Módulo II.

On 3 May 2015, Atlético Mineiro were crowned champions for the 43th time.

The league also selected Minas Gerais's representatives in the Campeonato Brasileiro Série D and the Copa do Brasil.

The best placed team in the first stage in each contest had the right to choose whether to play its home game in the first or second leg.

The best placed team in the first stage in each contest could win it with two ties.