Abstract: A bill acceptor and bill box assembly includes a bill acceptor for sensing the presence of a bill and verifying the authenticity of the bill, and a bill box having a bill entrance for receiving bills from the bill acceptor, a bill-receiving bearing board supported on a spring member, a bill-pressing board movable by a bill transfer mechanism to push each entered bill out of the bill entrance onto the bill-receiving bearing board, and an anti-skid device, which comprises two baffles arranged in parallel at two opposite lateral sides between the bill-pressing board and the bill-receiving bearing board and an anti-skid pad covered on the back wall of each baffle for stopping each received bill on the bill-receiving bearing board to keep each received bill in a fully extended smooth condition without wrinkles.