She told German broadcaster ARD that more than 10,000 athletes across sports including "football, volleyball, basketball, table tennis, badminton, athletics, swimming, diving, gymnastics and weightlifting" were all involved.
"In the 1980s and 90s, Chinese athletes on the national teams made extensive use of doping substances," Xue said.
"Medals were tainted by doping - gold, silver and bronze.
"All international medals [won by Chinese athletes in that time] should be taken back.
"There must have been more than 10,000 people involved.
"People [in China] believed only in doping, anyone who took doping substances was seen to be defending the country.
