The winners of the tournament, Midtjylland, earned qualification into the third qualifying round of the 2019–20 UEFA Europa League.
88 teams, representing all levels of competition, participated in the 44 first-round matches.
Eight more teams from the two highest divisions entered round two while the remaining six teams from the 2018-19 Danish Superliga joined the competition in the third round.
All teams from the top three divisions in 2017–18 are automatically entered while lower division teams play qualifying matches to enter the competition.
In the first round of the tournament the teams are divided into a West and East pool.