The 2021–22 T1 League season is the first season of the T1 League, with the Kaohsiung Aquas, the New Taipei CTBC DEA, the Taichung Wagor Suns, the Tainan TSG GhostHawks, the TaiwanBeer HeroBears and the Taoyuan Leopards participate in this competition. The regular season started on November 27, 2021 and ended on May 20, 2022.The play-in series played on May 22. The semi-finals series started on May 24 and ended on May 28. The finals series started on started on May 31 and ended on June 4. On June 4, the Kaohsiung Aquas defeated the Taichung Wagor Suns, 3–0, winning the 2021–22 season championship.