Abstract: To study the bearing capacity of the steel plate concrete composite wall and the effect of design parameters on the bearing capacity, finite element analysis is performed to simulate the steel plate concrete composite wall using ABAQUS, based on the experiment of 4 steel plate concrete composite wall for nuclear power engineering. Concrete, steel plate and stud are simulated by solid models. The nonlinear behavior of materials and residual stress of welded steel plate are taken into account in the analysis. The stress mechanism of stud is investigated, and the buckling deformation of steel plate is simulated. Various parameters are investigated, such as the strength of the steel and concrete, distance to thickness ratio, steel content that effects the bearing capacity. The results of finite element analysis are found to be in good agreement with the experimental results; the stud are always in the elastic stress state; concrete strength has biggest influence on the bearing capacity; the distance to thickness ratio has great effect on the buckling of steel plates, and smaller ratio of distance to thickness can ensure steel plate and concrete cooperative work.