It started on 29 September 2017 with the first round of the regular season and ended on 12 June 2018 with the final.

Cafés Candelas Breogán won the league and promoted to Liga ACB twelve years after.

A total of 18 teams contested the league, including 14 sides from the 2016–17 season, two relegated from the 2016–17 ACB and two promoted from the 2016–17 LEB Plata.

[2] On August 30, 2017, Sáenz Horeca Araberri achieved the vacant generated after the inclusion of Real Betis Energía Plus in Liga ACB.

Source: FEB The Copa Princesa de Asturias was played on 3 February 2018, by the two first qualified teams after the end of the first half of the season (round 17).