Abstract: To investigate the variation in the residual seismic resistance of damaged RC shear walls, five specimens were subjected to pre-damage and to failure loadings to systematically examine the effects of damage degree on the load-bearing capacity, on the deformation capacity and, on the stiffness. The results show that as damage increases, the strength and stiffness of RC shear walls decrease continuously prior to the pre-damage displacement, while their strength, stiffness, and deformation capacity remain largely unchanged after the pre-damage displacement. Once the damage exceeded the light level, the bearing capacity of the shear walls and the length of the plateau section of the load-displacement curve began to decrease gradually. Compared to the D0 specimen, the bearing capacity of the D3 (moderate) and D4 (severe) specimens decreased by 2.15% and 6.92%, respectively. A numerical model for RC shear walls was established using the OpenSees. Subsequently, through a parametric analysis, the effects of variations in the axial compression ratio, in the dark column longitudinal bar ratio and, in the longitudinal distribution bar ratio on the aseismic performance of moderately damaged RC shear walls were investigated. The results indicate that the degradation of aseismic performance in damaged RC shear walls is influenced not only by the extent of damage but also is closely related to design parameters. For shear walls with a smaller axial compression ratio (<0.17) and a lower longitudinal bar ratio (<2.01%) in dark columns, the skeleton curve after pre-damage displacement can still reach the level of undamaged shear walls. However, as the axial compression ratio and longitudinal bars ratio in dark columns increase, the skeleton curve after pre-damage displacement shows a significant reduction. The longitudinal distribution bar ratio has little effect on the skeleton curve after pre-damage displacements.