In this season, Nongbua Pitchaya competes in 3 competitions which consisted of the Thai League, FA Cup, and League Cup.

The season was supposed to start on 31 July 2021 and concluded on 21 May 2022.

[1] Then, due to the situation of the COVID-19 pandemic is still severe, FA Thailand decided to postpone the season to start on 13 August 2021 instead.

[2][3] However, as it stands on 23 July 2021, the COVID-19's situation is getting even worse.

Therefore, FA Thailand decided to postpone the opening day for the second time to start on 3 September 2021.