Abstract: A leather punching device 1 has a receiving mold 21 formed with receiving holes 22, a pressing mold 31 formed with storing holes 32 which communicate with the receiving holes 22 when joined with the receiving mold 21, and a moving member 45 provided with punching pins 5 which are stored in the storing holes 32 of the pressing mold 31, pressing projections 35 are provided around the storing hole 32 of the pressing mold 31, a leather 3 is disposed between the receiving mold 21 and the pressing mold 31, the pressing projections 35 of the pressing mold 31 come into pressure-contact with the leather 3, and the punching pins 5 project from the pressing projections 35 by the movement of the moving member 45 to one side to form punch holes 9 in the leather 3.