The season started on October 7, 2017, and ended on June 17, 2018.

Apollon Patras, and Doxa Lefkadas were relegated after the 2016–17 Greek Basket League.

Panionios and Gymnastikos Larissas Faros were promoted from the 2016–17 Greek A2 Basket League.

The eight highest ranked teams in the regular season qualified for the playoffs.

It also counts the total stats for both regular season combined.