Abstract: The external morphology of antennae and sensilla of Kallima inachus (Doubleday) were observed by scanning electron microscopy. The results showed that the antennae were club-shaped,and there were five types of sensillum on antennae:Böhm bristles, sensilla squamiformia, sensilla trichodea (Ⅰ,Ⅱ), sensilla coeloconica and sensilla chaetica. The sensilla numbers and their distribution were also examined in detail. The morphology of all sensilla types of males and females was the same. Although slight differences were recorded between the male and the female in the number of sensilla squamiformia, sensilla trichodeaⅡand the distribution of the sensilla coeloconica, no significant differences were observed in number and distribution in the other sensillum types. In the total number of sensilla, male is more than female; however, there were still no obviously sex dimorphisms.