*Club domestic league appearances and goals, correct as of 14:01, 31 January 2023 (UTC) ‡ National team caps and goals, correct as of 14:01, 26 June 2021 (UTC)
Duan Dezhi first played for the Beijing Guoan youth team who loaned him out to the China U19 team, who were allowed to take part in the third tier of the Chinese pyramid, in order to gain more playing time. After returning he would participate in senior games when he was part of the AFC Champions League squad, which was a mix of reserves and youth players to participate within centralized venues while the clubs senior players were still dealing with self-isolating measures due to COVID-19.[1] He would make his continental debut in a AFC Champions League game on 26 June 2021 against United City F.C. in a 1-1 draw.[2][3] He would make his debut in a league game on 23 December 2022 against Guangzhou F.C. in a 3-1 victory, where he also scored his first goal for the club.[4]
