The 2015 AFC Cup group stage was played from 24 February to 13 May 2015.
[1] The draw for the group stage was held on 11 December 2014, 15:00 UTC+8, at the Petaling Jaya Hilton Hotel in Kuala Lumpur, Malaysia.
The following 32 teams (16 from West Zone, 16 from East Zone) were entered into the group stage draw, which included the 27 automatic qualifiers and the five qualifying play-off winners, whose identity was not known at the time of the draw: Note: Teams in italics played in the AFC Champions League qualifying play-off, but failed to advance to the AFC Champions League group stage (had they advanced to the AFC Champions League group stage, they would have been replaced by another team from the same association).
The winners and runners-up of each group advanced to the round of 16.
If tied on points, tiebreakers would be applied in the following order:[1] The matchdays were 24–25 February, 10–11 March, 17–18 March, 14–15 April, 28–29 April, and 12–13 May 2015.