The season started on 21 July 2017 and is scheduled to end on 21 May 2018.
[1] The winter break began on 11 December 2017 and the league resumed on 2 February 2018.
They were replaced by FC Vaduz, who got relegated after finishing last-placed in the 2016–17 Swiss Super League.
Le Mont was relegated after failing to renew their licence.
1Chagas played 17 games for Rapperswil-Jona then signed for Servette.