Abstract: Aiming at the problems of poor pouring quality and weak bonding performance of the superimposed surface of the current double-sided superimposed shear walls, this paper investigates the seismic performance of a thin-walled double-superimposed shear wall structure. One cast-in-place shear wall specimen (SW) and one thin-walled double-superimposed shear wall specimen (DW) were designed and manufactured to conduct low-cycle repeated loading tests. The failure modes, hysteretic behavior, energy dissipation capacity, ductility, and stiffness degradation of the two specimens were compared and analyzed. The results show that both specimens failed in flexure. In specimen DW, the semi-embedded longitudinal reinforcement of the concealed column can effectively connect with the reinforcement and work together, which verifies the feasibility of its structural design. Compared with specimen SW, specimen DW has higher bearing capacity and weaker ductility. Its stiffness degradation shows the characteristic of “high initial stiffness-fast degradation rate”. The energy dissipation capacity of the two specimens is similar, and they can be approximately designed as “equivalent to cast-in-place”, which can meet the engineering requirements in seismic fortification areas.