The present invention relates to a water pressure type chestnut peeling apparatus which allows chestnut chestnuts to be transferred through a transfer means and peels the endothelium from water heated to a predetermined temperature so as to easily and easily peel chestnut endothelium . In order to attain the above object, the present invention provides an apparatus for peeling a chestnut, comprising: a first conveying unit (10) for supplying chestnuts with a husked state; A second transfer unit 20 installed at one side of the first transfer unit 10 and adapted to transfer the nip supplied from the first transfer unit 10 through the transfer screw 28 and to peel the endothelium through the brush 29, Wow; A cleaning device 30 installed at one end of the second transfer part 20 for cleaning water or medicines at night when the endothelium is peeled off; And a drying device 40 installed at an end of the cleaning device 30 for drying the cleaned night while the first transfer device 10 is driven by the motor 11 and the motor 11 The second transfer part 20 is formed in a box shape so that the water supplied from the first transfer part 10 can be filled in the night and the inside water is filled with water And an inlet port 23 for receiving a night in which the inner skin is peeled off from the first transfer section 10 is formed in a portion in contact with the first transfer section 10 and an inlet port 23 A housing 21 in which an outlet 24 for discharging the night is formed; A cylindrical screw case 27 provided on the inside of the housing 21 so as to be inclined upwards in one direction and having a plurality of through holes 27 'formed on the outer circumferential surface thereof; A motor 25 installed at one upper end of the housing 21; And a conveyance screw 25 which is installed inside the cylindrical screw case 27 and connected to the motor 25 by a belt 26 to convey the chest supplied to the housing 21 to one side in accordance with the rotation of the motor 25,