Abstract: In order to understanding the prevalence of intestinal parasites in sheep in Hennan province, 1265 sheep faecal samples from 5 farms were detected by the convention methods. The results showed that 5 groups parasites were detected in stool specimens, 2 groups were protozoon (coccidian, cryptosporidium), 2 groups were nematode (trichuris ovis,strongyloides stercoralis), 1 group was cestode . As a result，the average infection rate was 93.12％(1178／1265), thereinto, the infection rate of cryptosporidium sp was 3.10％, eimeria sp was 88.94％, trichuris sp was 10.83％, strongyloides sp was 59.11％, cestode was 43.96%,respectively. The results showed that sheep parasites mixed infections are more serious, in addition, the mixed infection of eimeria sp,tapeworm and strongyloides stercoralis took up 60.10% of the total infections rate. The results showed that sheep infection rate was reduction with the age increased.

Key words: intestinal parasite; infection rate; investigation; sheep