Chen Chunxin was promoted to Chinese Super League side Shanghai Port first team squad in the 2020 Chinese Super League campaign.
On 4 December 2020, he made his professional debut in a 2–0 defeat against Jeonbuk Hyundai Motors in a group game in the 2020 AFC Champions League.
[1] The following season he would establish himself as a squad player within the team and go on to score his first goal for the club in a league game on 15 August 2021 against Tianjin Jinmen Tiger in a 5-0 victory.
[2] On 30 March 2023, Chen joined fellow top tier club Qingdao Hainiu for the start of the 2023 Chinese Super League season.
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