Li Mingcai (; born August 22, 1971) is a retired male race walker from PR China. He competed for his native country at two consecutive Summer Olympics, starting in 1992.
| Representing | |||||
|---|---|---|---|---|---|
| 1990 | Asian Games | Beijing, China | 3rd | 20 km | |
| 1991 | San Jose, United States | 11th | 20 km | ||
| World Championships | Tokyo, Japan | 8th | 20 km | ||
| 1992 | Olympic Games | Barcelona, Spain | DNF | 20 km | |
| 1993 | Monterrey, Mexico | 12th | 20 km | ||
| World Championships | Stuttgart, Germany | DNF | 20 km | ||
| 1995 | Beijing, China | 10th | 20 km | ||
| Asian Championships | Jakarta, Indonesia | 1st | 20 km | ||
| 1996 | Olympic Games | Atlanta, Georgia, United States | DSQ | 20 km | |