Provided are a paper media transfer device and an automatic teller machine having the same. The paper media transfer device may include: a medium guide portion being provided on one side of a transfer direction of the paper media, and including a guide surface having at least one high point and at least one low point along the transfer direction of the paper media; and a medium transfer portion forming a transfer path of the paper media together with the medium guide portion to transfer the paper media, and including a belt member that is curved in correspondence to the guide surface, and a belt roller that drives the belt member and maintains the curved shape of the belt member, or adds a tension to the belt. Through this, it is possible to improve a tightening force.