Objective In order to improve biomechanics compatibilities of implant materials,the effect of SMAT process on mechanical properties of pure Ti has been studied.Methods Mechanical tests have been carried out to analyze the SMAT effect on mechanical properties of pure Ti after the 1mm thick Ti sheet was subjected to SMAT process.Results After SMAT process,the surface of pure Ti has been nanolized and the body has been converted into a gradient material. The study results show that SMAT process has made the Ti's strength increase,its plasticity decrease while the microhardness in its surface layer increase greatly.The most important is that the Ti's elastic modulus has decreased significantly which can improve Ti's biomechanics compatibility.Conclusion SMAT process is able to nanolize Ti's surface,which can decrease Ti's elastic modulus and improve Ti's biomechanics compatibility to make it promising in biomedical application.