Human capital plays a very important role in the import related R&D spillovers . In foreign literature,methods employed in analyzing the role of human capital in R&D spillovers often involve the following ones . Analysis of interaction effects between human capital and technology import variables : it measures the size of foreign R&D spillovers by directly using technology import variables . Its results are ambiguous . Analysis of interaction effects between human capital and foreign R&D stock :it directly calculates the size of foreign R&D stock,Its results are ambiguous likewise .Estimating absorptive capability :it directly estimates the size of the absorptive capability to investigate the role of human capital .Its results indicate that raising the education level in developing countries is very conducive to improving their absorptive capability .Case study :it presents a case about the spread and spillover of computer technology across countries .One of the most robust findings of this method is that high levels of education attainment are important determinants of computer technology spillovers . Threshold regression : it analyzes the thresholdeffect of humancapital on theimport related R&Dspillovers byapplying a special endogenous nonlinear threshold regression model . Its findings suggest that human capital may function as a so-called threshold variable in the import related R&D spillovers . In order to spread existing literature,future research can start with such aspects as improving the measure of variables,paying attention to adverse effects that international technology spillovers exert on the human capital,modifying the technology by which the model is estimated,and so on.