An automatic transaction device includes: a customer service port that accumulates and holds bills so as to be accessible from a customer side; a shutter that closes a deposit/withdrawal port of the customer service port; a sensor that detects an abnormality of the shutter; a bill holding unit that holds accumulated bills, and changes a state in the customer service port from a state in which the bills can be accessed from the customer side to an inaccessible state; and a control unit that controls a change of state of the bill holding unit and an opening and closing operation of the shutter, wherein, in a case in which an abnormality of the shutter is detected, the control unit changes the state of the bill holding unit to the inaccessible state from the customer side.