Objective To study viscoelasticity of the cancellous bone at femoral neck of fresh cadavers of Chinese nationality. Methods Tensile stress relaxation experiment was conducted for cancellous bone of femoral neck using Shimadzu AUTOGRAPH electronic universal testing machine at 90 degrees、0 degree, and 45 degrees, respectively: Results By using logarithmic regression analysis, the functions and curves of reduced stress relaxation of tested cancellous bone were obtained. Conclusion The results of the experiment show that the largest stress relaxation of the cancellous bone of femoral neck was found in samples tested at 90 degrees as compared with that tested at 0 degree and 45 degrees. These results suggested that the cancellous bone at femoral neck was anisotropic.