PURPOSE: To provide an automatic purchasing device for prize chips for which prize balls are exchanged in a Japanese pinball game (pachinko) parlor.

CONSTITUTION: A feeding device 6 which randomly stacks prize chips 1 previously subjected to registeration processing and automatically feeds the chips one by one, a reader 2, a prize chip returning device 9, two conveyor belts 8, 12, 17, a stopper device, and an upwardly pushing device are combined into a group, and a storage portion 26 equipped with a storage device and a pressing device are provided above each of the groups and are connected to the respective portions of a controller and to a money cashing device. The automatic feeding device 6 for the prize chips 1, the reader 2, the returning device 9, the money cashing device, and a mechanism which stops every plural prize chips 1 and stores each group of prize chips 1 into a corresponding storage portion are connected to respective portions of the controller.