2007 Thailand League Division 1

The 2007 Thailand League Division 1 was played in two groups of 12 teams. The top two teams of each group were promoted and the bottom five teams of each group were relegated as the Thai football league system was in the process of being restructured.

Customs Department were crowned champions after winning the end of season championship finals played between the promoted sides.

Member clubs in Group A

 * Customs Depart
 * Coke-Bangpra
 * Rattana Bundit
 * Khonkaen (move from 2006 Pro League 1 11th)
 * Raj-Vithi
 * Surat Thani (move from 2006 Pro League 1 7th)
 * Thai Airways (from 2005–06 Khǒr Royal Cup (ถ้วย ข.) Runner-up)
 * Narathiwat (move from 2006 Pro League 1 5th)
 * Air Force Training College
 * Sakon Nakhon (move from 2006 Pro League 1 13th)
 * Bangkok Bravo (move from 2006 Pro League 1 9th)
 * Ratchaburi (Promoted from 2006 Pro League 2 Champion)

Member clubs in Group B

 * Chula-Sinthana (Promoted from 2006 Thailand Division 2 League Champion)
 * Samut Songkhram(Promoted from 2006 Pro League 2 Runner-up)
 * Royal Thai Air Force
 * Chanthaburi (move from 2006 Pro League 1 8th)
 * Phitsanulok (move from 2006 Pro League 1 6th)
 * Sriracha
 * Nakhon Sawan (move from 2006 Pro League 1 4th)
 * Bangkok North Central ASSN
 * Nakhon Ratchasima (move from 2006 Pro League 1 10th)
 * Sisaket (move from 2006 Pro League 1 12th)
 * Chachoengsao (move from 2006 Pro League 1 14th)
 * Royal Thai Marine (from 2005–06 Khǒr Royal Cup (ถ้วย ข.) Champion)

Third place match

 * First Leg


 * Second Leg

Coke-Bangpra won 4–1 on aggregate.

Final

 * First Leg


 * Second Leg

Customs Department	 won 1 – 4 on Penalties after Two Leg Draw 6–6 on aggregate.