Objective Application of finite element analysis (FEA) method to study the mechanical properties of the interface between hip residual limb and hip socket during the stance phase, in order to provide a theoretical basis for the structure optimization and design of the hip socket and also provide a research basis for the comfort evaluation of the hip socket. Methods According to the CT scan images of the patient"s residual limb, the model of bone, soft tissue and socket was reconstructed by reverse modeling. Application of FEA method to analyze the distribution of normal stress and shear stress of the interface between the hip residual limb and hip socket and design a pressure acquisition module system to verify the stress distribution condition. Results The interfacial stress between the hip residual and hip socket was mainly distributed in the waist and the bottom of the residual, and the interfacial stress was more evenly distributed in the rest of the residual. The results of finite element calculation are in good agreement with the system measurement results of pressure acquisition module. Conclusions In order to improve force transfer and safety and comfort of the hip socket, it is necessary to fully consider the stress condition of the waist and bottom of the residual limb and the coordination degree between the residual limb and the hip socket.