The Danish participating broadcaster, Danmarks Radio (DR), organised the Dansk Melodi Grand Prix 1986 in order to select its entry for the contest.

Danmarks Radio (DR) held the Dansk Melodi Grand Prix 1986 on 22 February at TV-Byen in Gladsaxe, hosted for the ninth straight time by Jørgen de Mylius.

The winning entry was "Du er fuld af løgn", performed by Lise Haavik and composed by John Hatting.

Lise Haavik performed eighteenth on the night of the contest, following Sweden and preceding Finland.

At the close of the voting the song had received 77 points, placing 6th in a field of 20 competing countries.