目前已有大量的关于FDI和加工贸易国际R&D溢出的研究,本文改进了巴罗具有扩大的产品种类的技术扩散模型,将FDI国际R&D溢出、加工贸易国际R&D溢出、国内R&D三者共同作为技术进步的来源和经济增长的解释变量,通过对我国1983～2006年经济数据的实证分析表明,人力资本和国内R&D对经济增长的贡献具统计学意义上的显著性,且存在长期均衡关系;但没有足够的证据表明FDI和加工贸易对经济增长的显著正向外溢效应。 At present, there are a lot of researches on the international R & D spillover of FDI and processing trade. This paper improves Barro’s technology diffusion model with expanded product categories. It combines FDI international R & D spillover, international R & D spillover of processing trade and domestic R & D together as a technology The sources of progress and explanatory variables of economic growth, through the empirical analysis of China’s economic data from 1983 to 2006 show that the contribution of human capital and domestic R & D to economic growth is statistically significant and has a long-term equilibrium relationship; There is insufficient evidence of a significant positive spillover effect of FDI and processing trade on economic growth.