The invention provides a water chestnut peeling machine. The water chestnut peeling machine comprises a bracket, a fixed peeler, a movable peeler, a movable support frame and a spring; the bracket comprises a first beam, a second beam, a sliding chute, an upper upright and a through hole; the movable support frame comprises a sliding block, a vertical rod and a movable rest beam; the fixed peeleris arranged on a bottom surface of the first beam and forms an inclination angle of 15-deg with the bottom surface of the first beam. The movable peeler is arranged on an upper surface on the movablerest beam and forms the inclination angle of 15-deg with the upper surface of the movable rest beam; and the vertical rod penetrates the through hole and is sleeved with the spring, and the spring islocated between the movable rest beam and the second beam. The water chestnut peeling machine can effectively improve the peeling efficiency of the water chestnut.