The tooth plate anchorage zones of the prestressed concrete girder bridge bear the anchorage forces and radial forces of prestressed bars and are easy to form cracks or break due to discontinuities in geometry. So the designs of anti-crack bars are critically important. Seven classical tension stress distributions are described in this paper and a model based on strut-and-tie bar theory is constructed to form a novel design method for the prestressed bar design in the anchorage plates.