A total of eighteen clubs participated in double round-robin format.
Starting this season, top three clubs received automatic qualification to the following years' AFC Champions League.
Eighteen clubs will play in double round-robin (home and away) format, a total of 34 games each.
The clubs are ranked by points, and tie breakers are, in the following order: A draw would be conducted, if necessary.
League Division 1Notes:† Team played previous season in J2.