To provide an automatic transaction device capable of preventing a person other than a customer from steeling paid bills and coins. This device comprises a shutter opening and closing switch 17 enabling opening operations of shutters of a bill receiving and paying part 13 and a coin receiving and paying part 12, in which the shutters are opened by pressing down the shutter opening and closing switch 17. Further, this device can be adapted so that individual authentication is performed in an individual authentication part again by pressing down the switch 17, and after the customer is individually authenticated, the shutters are opened.