Persik Kendal (now in 2018 Liga 2), winner of the 2017 Liga 3 Central Java are the defending champions.
[1] In this competition, 17 teams are divided into 4 groups of four or five.
The two best teams are through to knockout stage.
The winner will represent Central Java in the national round of 2018 Liga 3.
There are 17 clubs which will participate the league in this season.