The club was established in 2008 and joined
Regional League Division 2 North Eastern Region. They finished bottom of the division in
2009, but were champions of the division
two seasons later, advancing to the
promotion play-offs, in which they finished fourth in a six-club group. They won their division again in
2012, but again only finished fourth in the
promotion play-off group stage. After winning their regional division for a third successive season in
2013, the club won their group in the
promotion play-offs, before going on to win the knock-out stages, defeating
Chiangmai 2–0 on aggregate over two legs and earning promotion to
Division One. Roi Et's
first season in Division One saw them finish fourth-from bottom, two points from safety, resulting in relegation straight back to Division Two. Following league reorganisation in 2017, the division was renamed
League 4. The club were excluded from the league the following year after failing to obtain a licence from the
Thai FA. However, they were subsequently rebranded as Roi Et CF and allowed to enter the North Eastern Region of the
Thailand Amateur League for the 2018 season. In 2020, a new chapter for football in Roi Et began with the establishment of "Roi Et PB United." This new era brought a complete change in leadership, introducing a new Club President and Team Manager. Despite the management overhaul, the club stayed true to its heritage by retaining the iconic "White Squirrel" mascot and the traditional Purple and White team colors. The Journey Begins The club officially started its competitive journey from the grassroots level. Their debut performance took place in the 2022 Thailand Amateur League (TA), marking the first step in their mission to return to professional football. ==Stadium and locations==