Abstract: The finite element calculation method has the advantage of high calculation accuracy and has become an effective engineering analysis technology in the field of construction. The design specifications for prefabricated concrete shear walls stipulate that trusses and distributed ribs should be reliablely connected, but the meaning of "reliable connection" is not explained in detail. Therefore, this article uses computer technology to establish a numerical model for superimposed concrete shear walls and conducts a finite element analysis of the axial compression performance of this type of shear wall.At the same time, the connection strength between the steel bar truss and the distribution rib mesh in the finite element model is changed to compare its deformation and mechanical properties. The calculation results show that the established numerical model has a good fit in simulating the axial compression performance of the shear wall of the superimposed concrete, and the superimposed surface of the superimposed concrete shear wall will change first during the compression process.Changing the connection strength between the steel bar truss and the distributed bar mesh will affect the overall working performance, vertical ultimate bearing capacity and axial compression stiffness of the superimposed concrete shear wall. This result can provide a reference for the design and construction of the superimposed concrete shear wall structure.