Vissel Kobe, Gamba Osaka and Consadole Sapporo were relegated at the end of the 2012 season after finishing in the bottom three places of the table.
Gamba Osaka, instead, was relegated for the first time since the creation of J.League in 1993 and the first time since their forerunners, Matsushita Electric Soccer Club, were relegated to the second Division of the Japan Soccer League after the 1986–87 season.
The three relegated teams were replaced by 2012 J.League Division 2 champions Ventforet Kofu, runners-up Shonan Bellmare and sixth-placed and play-off winner team Oita Trinita.
In the end, Oita beat JEF United Chiba in the playoff final and returned in J1 after three seasons in the second division.
Due to Oita's promotion, it will be the first time to have 2 clubs in the top-flight league competitions from Kyushu since 2006, and Kansai region will have only one club competing in the top flight first time since 1994 season due to Kobe and Gamba's relegations.