The reservoir hosts of Thelazia callipaeda were examined. The eyes of the 76 does raised at farm, 78 military dogs (shepherds), 96 cattle, and 105 pies were investigated for the presence of eyeworm. Among them, six worms of T. callipaeda were collected from two dogs raised at farm (2.7%) , and 188 worms from 26 shepherds (33.5%). No worms were recovered from the cattle or pigs, These results suggest that the dogs. especially the military dogs are serving as a reservoir host of T. callipaeda in Korea.