This creation discloses a kind of Portable sterilizing cylinder, and it includes ontology, pedestal and retracting cylinders to be constituted. The ontology upper end inside device has battery, and bottom end is then equipped with illuminating module, and the bottom end periphery of ontology is equipped with upper embedded groove, and pedestal inside bottom is equipped with lower caulking groove； In the upper embedded groove of the clip what ontology of upper chimeric the re-covering property of end on retracting cylinder top, the lower chimeric end of retracting cylinder bottom end then can the fixed what pedestal of clip lower caulking groove. When retracting cylinder stretches for feeding bottle storing, the LED light of illuminating module can radiate ultraviolet and effectively kill the bacterium except attachment what milk bottle surface.本創作揭露一種攜帶式消毒筒，其包含本體、底座及伸縮筒所構成。該本體上端內側裝置有電池，底端則設有發光模組，本體的底端周緣設有上嵌槽，而底座內側底部設有下嵌槽；伸縮筒頂端的上嵌合端可重覆性的卡掣於本體的上嵌槽內，伸縮筒底端的下嵌合端則可卡掣固定於底座的下嵌槽。當伸縮筒拉伸時可供一奶瓶置放，發光模組的LED燈即可放射出紫外線光而有效殺除附著於奶瓶表面的細菌。
