Abstract: Microscopy and scanning electron microscopy was used to observe the amount,distribution,kinds and density of the female and male adult’s antennal sensilla in Acleris fimbriana .The results show that there were kinds antennal sensila in the adults antennae,i;e. Sensilla trichodea,S.chaetica,S.coeloconica,S.styloconica,S.squamiformia,S. auricillica and Bohm’s bristles.There are differences in amount, distribution and densityof antennal sensilla between female and male.