The appearance and distribution of sensilla on the antenna of Lasioderma serricorne (Fabricius) were observed with scanning electron microscope (SEM). The results showed that the antenna of L. serricorne adults consisted of scape, pedicel and 9 sub--segment flagellum. Nine kinds of sensillum were found in the antenna, including sensillum trichodeum, sensillum chaeticum, sensillum basiconicum(Ⅰ,Ⅱ, Ⅲ, and Ⅳ), sensillum scolopale, Bohm bristle, and sensillum orbiculate. Sensillum basiconicum Ⅳ, sensillum scolopale, sensilla Bohm bristle and sensillum orbiculate were first discovered in L. serricorne. In addition, the structure-function relationship of the sensillum was discussed.