The league would be contested by the top eight teams from the 2017–18 season as well as the two clubs promoted from the National First Division, Vacoas-Phoenix and Rivière du Rempart.
They replaced the two teams that were relegated to the National First Division, Entente Boulet Rouge-Riche Mare Rovers and Chebel Citizens SC The season began on 23 November 2018 and concluded on 27 April 2019.
Pamplemousses SC won the league championship and qualified for the 2019-20 CAF Champions League qualifying round.
Roche-Bois Bolton City qualified for the 2019-20 CAF Confederation Cup through winning the 2019 Mauritius Cup.
AS Rivière du Rempart and AS Quatre-Bornes were relegated to the National First Division.