政府科技资助的绩效已经引起国内外学者的极大关注。本文基于文献研究，建立影响企业R&D投入的实证模型，采用浙江省民营科技企业数据，测度了政府科技资助对企业R&D投入的影响。进一步，分别从企业规模、研发强度、资助强度等不同视角研究政府科技资助的激励效应，探索政府科技资助的激励机理，研究发现：政府科技资助对企业滞后一年的R&D投入有显著促进作用；企业规模越大，政府科技资助激励效果越好；政府科技资助强度越大，激励效果越好；企业研发强度影响政府科技资助激励企业R&D投入。

The performance of government subsidies has been focused on by many researchers. Based on the literature review, an empirical model is set up in order to evaluate the effect of government subsidies on enterprise R&D investment by using Zhejiang private science and technology enterprises database. Then the stimulation effect is analyzed from size of enterprise, intensity of R&D, and intensity of government subsidies respectively. The main empirical discoveries are following: there is a significantly positive effect of government R&D subsidies on private R&D input of one-year lag; the bigger size of enterprise, the better effect of stimulation; the larger intensity of R&D subsidies, the better effect of stimulation; and the enterprise intensity of R&D has the effect on the performance of government R&D subsidies to private R&D investment.