To provide a ball dispensing machine and a system facilitating replacement of one of functions of a conventional ball medium dispensing machine.

A money processing device 11 receiving money, a recording medium processing device 21 receiving the recording medium recorded with valuable, and a dispensing device 31 dispensing game media are constituted as separate devices and mutually detachably combined and connected so as to constitute this game medium dispensing machine. A part of the functions of the game medium dispensing machine can be improved by replacing either of the devices having functions to be improved. This game medium dispensing system can not be constituted by integrally combining the devices together, but be done by connecting the mutual devices to each other via a network.