[2] However while he may have cemented himself within the team (now renaming itself Shenzhen Kejian at the start of the 2004 league season) he was unable to aid them in their promotion bid to the top tier.

With this move Wu Wei'an would rise to prominence, quickly establishing himself as a regular within the team he would play in 26 league games and score 7 goals.

[4] The following seasons would see him become a vital member of the team that would qualify for the 2009 AFC Champions League for the first time in the club's history, while also going on to play in five games and scoring one goal during the tournament.

After the win Wu Wei'an had a chance to return to Guangdong with recently promoted top-tier side Guangzhou R&F, which he decided to take at the beginning of the 2012 league season.

Wu Wei'an would make his senior international debut under Zhu Guanghu on February 7, 2007 in a friendly against Kazakhstan where China won 2–1 in a preparation game several mouths before the 2007 AFC Asian Cup.