Despite being promoted to Shenhua's senior team in 2002, he would have to wait until the 2004 league season before he could make his debut.
Zheng Wei would have a loan period with Shanghai Zobon for one season before he would move to Shaanxi Baorong Chanba at the beginning of the 2007 league season where he immediately established himself as a versatile left midfielder and defensive midfielder.
An immediate regular he would play in 23 league games in his debut season and see Shaanxi fight off relegation.
[3] With the team unable to improve upon the previous season's results the club brought in Zhu Guanghu and then Milorad Kosanović to manage the team and Zheng saw his playing time reduced.
By the end of the 2010 league season Zheng would be allowed to leave the club and he would return to Shanghai Shenhua.