Jiang Wenhao was promoted to the senior team of Beijing Guoan within the 2020 Chinese Super League season.
He would make his debut in a Chinese FA Cup game on 28 November 2020 against Chengdu Better City in a 1-0 victory.
[1] He would be given an opportunity to participate within 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.
[2] He would make his continental debut in a AFC Champions League game on 26 June 2021 against United City F.C.
[3][4] The following campaign in 2022 league season he would be loaned out second tier club Guangxi Pingguo Haliao on 17 August 2022.