The 2004/05 Primera Divisió was the 10th season in the history of the Andorran football league. The season started on September 19, 2004 and ended on May 1, 2005.
After a preliminary round, each consisting of a round trip, the league was divided into two groups of four; the best four teams play in the championship round for the title and international starting positions, the four worst teams against relegation to the Segona Divisió .
Due to the direct comparison between the Atlètic Club d'Escaldes and FC Encamp , the latter rose despite a better goal difference.