Wei won the 2002 Beijing Marathon in a record time, but was disqualified after failing a drugs test and was banned from the sport for two years.

Born in Kunshan, Jiangsu Province,[1] she first made her impact as a long-distance runner in 1999 when she broke the Chinese record for the 10 km road distance with a run of 31:49 minutes in Beijing.

[3] In October she won the Beijing Marathon in a course record time of 2:26:34 hours, beating the pre-race favourite Sun Yingjie by a margin of two seconds.

[10] Wei won the Beijing Marathon for a second time that October and broke the Chinese record with her run of 2:20:23 hours.

[13] In 2007, Wei reached new heights with a personal best run of 2:23:12 hours to take her second career victory at the Seoul Marathon.

[14] As a result, she was selected for the Chinese team at the 2007 World Championships in Athletics, but at the event in Osaka she failed to match her early season form and finished in 37th place.

[13] The 2008 Xiamen Marathon provided an opportunity to qualify for the 2008 Beijing Olympics, but her time of 2:25:10 hours was only enough for third as her younger compatriots Zhang Yingying and Bai Xue took the top two spots.