Seismic energy dissipation technology can significantly improve the seismic behavior of building structure. The effect of the damper depends on its effective connection with the main structure， there are few researches on the effective connection design method between the damper and the whole structure at present. In this paper， a cantilever wall structure with a new type of embed? ded parts is proposed for the intermediate column connection of metal dampers in engineering， and the design method and key points are given. In order to further explore the reliability of the design method and investigate the mechanical properties of the can? tilever wall， two specimens were tested under quasi-static unidirectional loading and low-cycle reciprocating loading. The results show that the cantilever wall cracks begin to develop from the joint of embedded parts， and the stress in the corner and the core ar? ea of the embedded parts is larger when it is destroyed. Adding hidden beam and hidden column can better improve the load carry? ing capacity of the cantilever wall. The new embedded parts can be combined with the hidden beam and hidden column to make the cantilever wall bear larger damping force under the condition of small size， and ensure the damper to give full play to the seismic en? ergy dissipation effect.