Abstract:In this study,we investigated the palatability on Plateau Pikas (Ochotona curzoniae) by three baits containing anti-fertility compounds of quinestrol,levonorgestrel and EP-1 ( mixture of the two compounds) respectively with oats ( Arena nuda),fodder or carrot ( Daucus carota) as baits ( 10 mg /kg). The results indicated that plateau pikas preferred to eat plain baits of oat and fodder baits over the carrot bait. All the three compounds did not change the palatability of oat,fodder and carrot baits of male pikas. Quinestrol only significantly reduced consumption of oat bait by female Pika ( P = 0. 0128). Levonorgestrel and EP-1 did not significantly reduced food intake of oat,fodder and carrot baits by pikas. In summary,except quinestrol-oak baits on female pika,all the three anti-fertility compounds showed no significant effect on palatability of Pikas, and thus are promising in fertility control for this species.