To provide a piling device capable of preventing deformation of a workpiece and occurrence of a flaw and shortening a cycle time of a press machine.

A laminated body of the workpiece W moves upward in a frame body 2 by an extension of a cylinder unit 3 and a second pawl 11 by moving up of a workpiece support member 4, simultaneously the workpiece W set on a pin 7 moves upward and moves further upward from a first pawl 8 while turning the first pawl 8 upward. When the workpiece W set on the pin 7 moves further upward form the first pawl 8, the first pawl 8 automatically returns to the horizontal position. The laminated body of the workpiece W held in the frame body 2 drops to be piled up on the workpiece set on the first pawl 8 which retracts the second pawl 11 by driving a cylinder unit 10. The second pawl 11 is projected by driving the cylinder unit 10 and the undersurface of the laminated body of the workpiece W is supported along with the first pawl 8.