To provide a game medium counting device being set in a use state by registration of a finger print, allowing a player to operate and count, giving the player no discomfort of being kept under surveillance, also reducing employees' trouble of operating a counter for every time of counting and discomfort being kept under surveillance, ensuring consistency of the counting in comparison with sales data of a parlor computer and suppressing a fraud of the employees by storing counting information of the game media and registration information of finger pints in the game medium counting device.

This game medium counting device 3 having a storage authentication device 31, a counting mechanism 33 and a display mechanism 35, is further provided with: a biological information registration mechanism registering biological information, storing the biological information, and collating it with biological information; and an operating state storage device registering and authenticating or authenticating biological information of a manager and setting/resetting the game medium counting device 3 into an operating state for every authentication, and storing the course of the operating state.