The 2018 Segunda División season, was the 73rd edition of the second tier of Federación Peruana de Futbol.
The top seven teams at the end of the first stage moved on to liguilla.
The liguilla champion was promoted to the 2019 Torneo Descentralizado and the tournament championship.
[3] A total of 15 teams played in the league, including 12 sides from the 2017 season, two relegated from the 2018 Torneo Descentralizado and one promoted from the 2018 Copa Perú.
The two relegated clubs were La Bocana and Sport Áncash who will play in the 2018 Copa Perú starting in the Departamental Stage.