The invention discloses a self-cleaning potato peeler. The self-cleaning potato peeler includes a handle and blades. The inside of the handle is provided with a micro motor, the lower end of the micromotor is connected with a rotating shaft, the blades are installed on the lower end of a cutter holder, and the outer part of the blades are provided with inner barrels. According to the self-cleaning potato peeler, the micro motor is arranged, the cutter holder is driven by a rotating shaft to rotate, and when the cutter holder rotates, potatoes can be automatically peeled. The operation is simple, convenience of the whole device is enhanced, when a slider slides on a sliding rail, the blades can be driven to slide on the cutter holder, the distance between the two blades can be changed so that the potato peeler can be used for peel removal of potatoes different in size, and the practicability of the whole device is enhanced. Water pipes are used for making a water tank and the inner barrels communicated, when a micro booster pump is started, and water in the water tank can be conveyed in the inner barrel through the water pipeline and is sprayed out at the position of an isolation net for cleaning the cutter holder and the blade.