The 2017 champions Kalju U21, runners-up Kalev U21 and 4th placed Keila JK were promoted to Esiliiga, while 10th place Sillamäe Kalev U21 was relegated and Viimsi JK and Raasiku Joker decided not to participate in 2018 Esiliiga B.
They are: Lasnamäe Ajax, Nõmme United, Pärnu JK, Tallinna Legion, Flora U19 and Võru Helios.
The table lists the positions of teams after completion of each round.
In order to preserve chronological evolvements, any postponed matches are not included in the round at which they were originally scheduled, but added to the full round they were played immediately afterwards.
[18] Rejal Alijev was named Esiliiga B Player of the Year.