Regarding the parameter selection of ABAQUS(finite element analysis software)CDP model(concrete damage plastic model)，combined with the experimental results of Yuan Yingshu，the selection of viscosity coefficient，dilation angle and calculation method of CDP model is discussed.The results show that：1)When the viscosity coefficient is 0.001，it has good calculation accuracy and convergence；2)When the dilation angle is about 36°，the calculated results are in the best agreement with the experimental results；3)For the reinforced concrete problem of CDP model，the “Static，General” method(general statics method)should be used instead of the Risk method(arc-length method).The calculation results of the suggested values of these parameters can well reflect the damage and cracking process of reinforced concrete beams，and can provide a reference for the research on mechanical properties of reinforced concrete members in port and wharf projects.