The 2018–19 Primera Divisió, also known as Lliga Multisegur Assegurances, was the 24th season of top-tier football in Andorra.
The winner of the league this season earned a place in the preliminary round of the 2019–20 Champions League, and the second-placed club earned a place in the preliminary round of the 2019–20 Europa League.
[1] FC Ordino earned a place in the Primera Divisió this season by winning the 2017–18 Segona Divisió.
The eight clubs played each other three times for twenty–one matches each during the regular season.
The seventh-placed club (third-placed in the relegation round), from the 2018–19 Primera Divisió and the runners-up from the 2018–19 Segona Divisió, played in a two-legged relegation play-off for one place in the 2019–20 Primera Divisió.