Abstract: A packaging box with cleaning function comprising a carrier in tray shape and a top cover, several slots are on the carrier, several indentations are vertically on both sides of the slot, every corresponding pair of the indentations is to place a optical coating lens; the bottom of the slot has a long open, the bottom is inclined downward; a plurality numbers of small hole are on top of the carrier. The optical coating lenses can be placed into indentations directly for supersonic wave cleaning or washing, and drying up, then have the top cover on to achieve simplified and fast packaging.