The top four teams from the 2004 Lao League were joined by four provincial teams from outside Vientiane. These eight teams were split into two groups and a round robin series of matches was played. The top two teams from each group qualified for the semi final knockout round to determine the two teams that would contest the final. The losers of the semi finals met in a third place playoff.[2] It is not clear whether there was a qualifying tournament for the provincial teams as there was in 2004 and 2006.