To provide a game medium dispenser which can easily collect IC coins.

The ball dispenser 1 is provided with a lower reader 52 for reading the data of IC coins at the outlet of a storage section 24 storing IC coins. The IC coins of which the data is read by the lower reader 52 or which overflows at the storage section 24 are housed in an error coin housing section 82 attached to a housing section panel 80. The housing section panel 80 is fixed by supporting a key receiving section is supported on the key plate of a lock and a bearing section on a shaft, and the housing section panel 80 becomes turnable to the near side when the lock is unlocked.