To provide a game customer information management system which can accurately manage the operation rate of a game machine, a customer's number of coming to the parlor, and earnings and expenses by winning and losing by every individual customers.

A first imaging means 16 to image the face image of a customer is provided in the vicinity of a game machine 10. The face information of the customer imaged by the imaging means 16 is stored and the face information of the game customer is specified from a face information data base 38. A game customer information management table 40 is prepared and the operation rate of the game machine 10 and operation rate and the customer's number of coming to the parlor are calculated based on the key data corresponding to the face information stored in the game customer information management table 40.