Abstract: Cervus elaphus is second-class protective species in China. In order to understand the statue of parasites in the feces of Northeast Cervus elaphus in a nature reserve of Inner Mongolia, a total of 20 fecal samples collected from Gogostai Haan Nature Reserve of Inner Mongolia were examined by using floatation from March to May in 2014. The results showed that Cervus elaphus was infected by parasites lightly in cool and dry winter, and the main parasites were whipworm, nematode and tapeworm. The average infection rates of whipworm, nematode and tapeworm were all 5% and the total infection rate was 15%,what′s more, mixed infection by more than one parasite was not found in this experiment.