The ten highest-ranked teams from the 2016–17 Volleyleague final standings were: PAOK, Olympiacos Piraeus, Panathinaikos Athens, Pamvohaikos Vocha, Kifissia, Foinikas Syros, Ethnikos Alexandroupolis, Iraklis Thessaloniki, Iraklis Chalkidas and Panachaiki.
Two teams from the 2016–17 Volleyleague were demoted to A2 Ethniki: Kyzikos Nea Peramos and Orestiada.
The regular season is held in a round-robin format, every team contesting 22 games in total.
At the end of the regular season, teams occupying positions 1–8 advance to the 2017–18 Volleyleague Greece Playoffs, while teams occupying positions 9–12 compete in the 2017–18 Volleyleague Greece Playouts.
Teams in positions 1-8 after the end of regular season participated in Play off for the final classification.