In order to optimize the connection of precast composite shear wall, two local high damping concrete precast composite shear walls with or without concealed steel plate bracing were designed. Quasi-static tests of two specimens were carried out, and the bearing capacity, hysteretic curves, skeleton curves, displacement ductility, stiffness degradation, energy-dissipation performance, crack development and failure pattern were obtained, and compared with each other. The test results indicate that the test specimens exhibit great seismic structural behaviors, and the use of concealed steel plate bracing can improve the bearing capacity, deformation ability as well as its ductility of precast composite shear wall.