Jeonbuk Hyundai Motors won their first AFC Champions League title after beating Al-Karamah 3–2 on aggregate in the final.

Each club played double round-robin (home and away) against fellow three group members for a total of six matches.

If two or more teams were tied on points, the following tiebreaking criteria were applied: The seven group winners along with the defending champion advanced to the quarter-finals.

The games were played over two legs, home and away, and the aggregate score decided the winner.

If still tied, clubs played extra time, where the away goals rule still applied.