The 2018 season is SCG Muangthong United Football Club's 12th existence in the new era since they took over from Nongchok Pittaya Nusorn Football Club in 2007.

It is the third season in the Thai League and the club's tenth consecutive season in the top flight of the Thai football league system since promoted in the 2009 season.

First Thai footballer's market is opening on 14 November 2017 to 5 February 2018 Second Thai footballer's market is opening on 11 June 2018 to 9 July 2018