The 2017 AFC Champions League group stage is being played from 20 February to 10 May 2017. A total of 32 teams compete in the group stage to decide the 16 places in the knockout stage of the 2017 AFC Champions League.
The draw for the group stage was held on 13 December 2016, 16:00 MYT (UTC+8), at the Hilton Petaling Jaya in Petaling Jaya, Malaysia. The 32 teams were drawn into eight groups of four: four groups each in the West Region (Groups A–D) and the East Region (Groups E–H). Teams from the same association could not be drawn into the same group.
The seeding of each team in the draw was determined by their association and their qualifying position within their association. The mechanism of the draw was as follows:
The following 32 teams entered into the group stage draw, which included the 24 direct entrants and the eight winners of the play-off round, whose identity were not known at the time of the draw.
In the group stage, each group is played on a home-and-away round-robin basis. The winners and runners-up of each group advance to the round of 16.
The teams are ranked according to points (3 points for a win, 1 point for a draw, 0 points for a loss). If tied on points, tiebreakers are applied in the following order (Regulations Article 10.5):
The schedule of each matchday is as follows. Matches in the West Region are played on Mondays and Tuesdays, while matches in the East Region are played on Tuesdays and Wednesdays.