Sterilization plug cover

The utility model discloses a sterilization plug cover. The sterilization plug cover comprises a plug body, a circuit board, a sterilization unit, a cap cover, a transparent isolation sheet, a waterproof lining ring group and an outer sleeve piece, wherein the plug body is provided with a head part, a conical part and a joint part; the circuit board is arranged in the head part and is electricallyconnected with a storage element, a switch and a connector; the sterilization unit is arranged in the joint part and is electrically connected with the circuit board; the cap is assembled on the joint part, a ring wall is arranged on the cap, and the surface of the ring wall is an inclined plane; the transparent isolation sheet is configured between the joint part and the cap. And the waterprooflining ring group is arranged among the joint part, the transparent isolation sheet and the cap. The outer sleeve piece is arranged on the conical part and the surface of the cap. Wherein the switch is pressed down to enable t