The season began on 4 August 2017 and ended on 26 May 2018.
[2] Each team played a total of 30 matches (15 home and 15 away).
On 29 June 2016, the Football Association of Slovenia decided to expand the Second League from 10 to 16 teams for the 2017–18 season.
Source: NZS Source: NZS Note 1:Team played the previous season in the Slovenian PrvaLiga.
Note 2:Team played the previous season in the Slovenian Third League.