Abstract: By taking Zhanjiang gulf bridge as the research object, a full scale model test for cable-girder anchorage, as the key part of bearing safety of cable-stayed bridges, was made to further investigate the mechanism of cable force transmission and the regularity of stress distribution to evaluate its security and reliability, and the experimental results were compared with 3-D nonlinear simulation ones based on FEM ( finite element method).The research shows that there exists a large concentration of stresses on welded lines between the tensile anchor plate and the anchor tube, but the distribution of stresses become uniform gradually far away from the welded lines.The cable-girder anchorage has well property and safety of load-bearing.However, the concentration of stresses in some components of the structure should be paid more attention to in the design.