Thai clubs history of playing in the AFC Cup. Osotsapa were the first side to take part since the competition started in 2004. After the revamping of the Champions League in 2009, Thai clubs once again entered. Since 2013, Thailand was given a direct spot in the AFC Champions League group stage and could not participate in the AFC Cup.
| Team | Qualified | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 |
|---|---|---|---|---|---|---|---|---|---|---|
 Chonburi |
3 Times | QF | QF | SF1 | ||||||
| Muangthong United |
2 Times | SF1 | QF1 | |||||||
| Osotsapa |
1 Time | GS | ||||||||
| PEA |
1 Time | GS1 | ||||||||
| Thai Port |
1 Time | QF |
1 Eliminated from AFC Champions League qualifying stage
| Team | GP | W | D | L | F | A | GD | PTS |
|---|---|---|---|---|---|---|---|---|
| Chonburi | 29 | 18 | 4 | 7 | 63 | 34 | +29 | 58 |
| Team | GP | W | D | L | F | A | GD | PTS |
|---|---|---|---|---|---|---|---|---|
| Muangthong United | 20 | 10 | 6 | 4 | 37 | 12 | +25 | 38 |
| Team | GP | W | D | L | F | A | GD | PTS |
|---|---|---|---|---|---|---|---|---|
| Osotsapa | 6 | 3 | 1 | 2 | 12 | 3 | +9 | 10 |
| Season | Round | Team 1 | Score | Team 2 | Venue |
|---|---|---|---|---|---|
| 2007 | Group Stage | Osotsapa
|
4–0 |  Pahang
|
Royal Thai Army Stadium, Bangkok, Thailand |
| 2007 | Group Stage |  Tampines Rovers
|
2–1 | Osotsapa
|
Tampines Stadium, Tampines, Singapore |
| 2007 | Group Stage | Osotsapa
|
0–0 |  Mohun Bagan
|
Royal Thai Army Stadium, Bangkok, Thailand |
| 2007 | Group Stage | Mohun Bagan
|
1–0 | Osotsapa
|
Salt Lake Stadium, Kolkata, India |
| 2007 | Group Stage | Pahang
|
0–4 | Osotsapa
|
Shah Alam Stadium, Shah Alam, Malaysia |
| 2007 | Group Stage | Osotsapa
|
3–0 | Tampines Rovers
|
Royal Thai Army Stadium, Bangkok, Thailand |
| Team | GP | W | D | L | F | A | GD | PTS |
|---|---|---|---|---|---|---|---|---|
| PEA | 6 | 3 | 1 | 2 | 12 | 10 | +2 | 10 |
| Season | Round | Team 1 | Score | Team 2 | Venue |
|---|---|---|---|---|---|
| 2009 | Group Stage |  Club Valencia
|
1–3 | PEA
|
National Stadium, Malé, Maldives |
| 2009 | Group Stage | PEA
|
2–1 | Home United
|
Suphachalasai Stadium, Bangkok, Thailand |
| 2009 | Group Stage | PEA
|
1–3 |  Bình Dương
|
Suphachalasai Stadium, Bangkok, Thailand |
| 2009 | Group Stage | Bình Dương
|
1–1 | PEA
|
Gò Đậu Stadium, Thủ Dầu Một, Vietnam |
| 2009 | Group Stage | PEA
|
4–1 | Club Valencia
|
Suphachalasai Stadium, Bangkok, Thailand |
| 2009 | Group Stage | Home United
|
3–1 | PEA
|
Jalan Besar Stadium, Kallang, Singapore |
| Team | GP | W | D | L | F | A | GD | PTS |
|---|---|---|---|---|---|---|---|---|
| Thai Port | 9 | 4 | 3 | 2 | 12 | 9 | +3 | 15 |
| Season | Round | Team 1 | Score | Team 2 | Venue |
|---|---|---|---|---|---|
| 2010 | Group Stage | Thai Port
|
2–3 | SHB Đà Nẵng
|
Suphachalasai Stadium, Bangkok, Thailand |
| 2010 | Group Stage |  NT Realty Wofoo Tai Po
|
0–1 | Thai Port
|
Tseung Kwan O Sports Ground, Tseung Kwan O, Hong Kong |
| 2010 | Group Stage | Thai Port
|
2–2 | Geylang United
|
Suphachalasai Stadium, Bangkok, Thailand |
| 2010 | Group Stage | Geylang United
|
0–1 | Thai Port
|
Jalan Besar Stadium, Kallang, Singapore |
| 2010 | Group Stage | SHB Đà Nẵng
|
0–0 | Thai Port
|
Chi Lăng Stadium, Da Nang, Vietnam |
| 2010 | Group Stage | Thai Port
|
2–0 | NT Realty Wofoo Tai Po
|
Surakul Stadium, Phuket, Thailand |
| 2010 | Round of 16 |  Sriwijaya
|
1–4 | Thai Port
|
Jakabaring Stadium, Palembang, Indonesia |
| 2010 | Quarter-finals | Thai Port
|
0–0 |  Al-Qadsia
|
Suphachalasai Stadium, Bangkok, Thailand |
| 2010 | Quarter-finals | Al-Qadsia
|
3–0 | Thai Port
|
Mohammed Al-Hamad Stadium, Hawally, Kuwait |
