This paper presents the effects of import-related international technology spillovers on the change of the total factor pr oductivity rate.Our empirical research demonstrates that taking import trade as the spillover channel,there is a long-run equilibrium relation between domestic R&D, R&D of spillovers of trade partners and the total factor productivity.Further analysis shows that the interaction between international R&D spillover and human capital significantly promote China's total factor productivity,and human capital plays a key role in the technology spillovers.