Objective To study the biomechanical variation in proximal femoral stress pattern and periprosthetic femoral stresses distribution after modular hip resurfacing arthroplasty.Methods Three-dimensional finite element model of intact femur, traditional prostheses and modular hip resurfacing arthroplasty were developed.Applied with physiological loading and related muscles forces, the stresses changes in proximal femur with implants were analyzed.Results Compared with intact femur, Stress concentrations were located around the stem in traditional model, high stresses occurred in the inferior of femoral neck(sections 4,10), stress shielding were found in the proximal sections(sections 1, 7).While in modular hip resurfacing arthroplasty model, stress concentrations were also located around the stem but lower, stress distribution in sections of 4,10 were closer to the intact condition.Conclusion The modular hip resurfacing arthroplasty may loaded the proximal femur in a more physiological manner and decreased the risk of femoral neck fracture compared with traditional prostheses.