J.LEAGUE announced the competition format of the 2021 MEIJI YASUDA J3 LEAGUE. More details will be announced as soon as determined.

Competition Schedule and number of matches Competition format
(15 teams)
Saturday 13 March – Sunday 5 December,
30 rounds/210 matches
Home and Away 
round-robin competition

* There is a possibility of that the schedule may change. 

■Promotion and relegation rules between J2 LEAGUE and J3 LEAGUE
● The bottom four clubs of the J2 LEAGUE shall be relegated to J3 LEAGUE and the top two clubs of J3 LEAGUE shall be promoted to J2 LEAGUE
● J3 clubs that have not received a J.LEAGUE club license cannot be promoted and will not be replaced by third or lower place club