The object of the present invention is to enable the player to start very easily the operation of game machines. In order to achieve this end, the charge management system of the present invention comprises game machines 1, 3 provided with fingerprint information inputting section 5, 7, a MPU 13 connected through wire or by radio with the game machines 1, 3, a fingerprint information registration section 17 and card information inputting section 19, a charging information data base 23, a card manager 31 communicable through phone line 29 and a card information data base 23. When card information is inputted and fingerprint information is registered, the information is transmitted to the card manager 31 to be collated with the card information contained in the card information data base 33. When the collated results agree, an approval signal is transmitted from the card manager 31 to the MPU 13. When the fingerprint information inputted in the fingerprint information inputting section 5 and / or 7 agrees with the fingerprint information registered, the game machine 1 and / or 3 is brought into the operable condition. Then, in response with the operation information and based on the charging information, the player is charged and the charging result is transmitted to the card manager.