The utility model relates to a medicine box with an ultraviolet sterilizing function. The medicine box with the ultraviolet sterilizing function comprises a box body and a box cover, the box body is divided into an inner cavity and an outer cavity which are separated by a partition plate, the top of the partition plate is provided with a bar-shaped sucker, the middle of the partition plate is provided with a breathing hole, and the inside of the breathing hole is provided with a filter screen; a temperature sensor is arranged under the breathing hole; the rear surface of the inner cavity is provided with a thermometer, and both side surfaces of the inner cavity are provided with dryers; the inner surface of the box cover is provided with two slideways, the middle of the two slideways is provided with an ultraviolet lamp, both sides of the ultraviolet are provided with positioning plates, and sliding partition plates are arranged inside the slideways; the outer surface of the box cover is provided with a solar photovoltaic panel; a photoelectric converter is arranged inside the outer cavity, a storage battery is arranged at the bottom of the outer cavity, and a refrigerating unit and a motor are arranged above the storage battery. The medicine box with the ultraviolet sterilizing function can maintain the inside of the box body to be low-temperature and dry, kill bacteria and virus inside the box body through the ultraviolet lamp and ensure storage security of medicines; meanwhile, the ultraviolet lamp is powered through solar generation, so that environmental protection and energy saving can be obtained.