The 2004-05 Thai Premier League had 10 teams. Two clubs would be relegated as the league would be expanded to 12 teams for the 2006 season. Two teams promoted from the rival Provincial League and two clubs from Thailand Division 1 League. The team that finished in 8th position would play in a relegation play-off.
The Queen's Cup was postponed because of lack of sponsorship, will be held next year but with reduced prize money.
Asian Representation
In the 2005 Asian Champions League, a competition described as competition restricted to 14 countries considered 'mature' in the so-called 'Vision Asia' paper of AFC President Mohamed Bin Hammam. The so-called 14 'developing' countries have their clubs relegated to the AFC Cup, while the clubs from the 'emerging' countries are dumped into the new Presidents Cup.
BEC Tero Sasana and Krung Thai Bank would again be the Thai representatives and would also fail to qualify for the knockout stages. Krung Thai once again came in second place in their group, but a full 9 points behind group winners Busan I'Park. BEC would once again slump to bottom position on 1 point.
