Based on classical classification ,the technology innovation is divided into product innovation and process innovation. Based on grey cor‐relation model ,the article make an empirical analysis on the data of 2005 -2012 ,.The analysis results showed that the new product development funds ,technical transformation funds had significant effect on economic growth ;in contrast ,the investment efficiency of new product development funds and technical transformation funds on the second industry is the highest ,the third industry investment efficiency take second place ,the effi‐ciency on the first industry is the lowest ;the article also found that investment efficiency of technical transformation funds on the three major in‐dustries are better than new product development for high efficiency of output .%将技术创新分成产品创新和工艺创新，对比研究两类技术创新对经济增长及三大产业经济增长的影响及差异。依据灰色系统原理构建灰色关联模型，对2005－2012年全国数据进行实证分析，结果显示新产品开发经费，技术改造经费对经济增长有显著促进作用；相比较而言，新产品开发经费和技术改造经费对第二产业的产出效率最高，对第三产业的投入效率次之，对第一产业的产出效率最低；同时发现技术改造经费对三大产业的产出效率均比新产品开发经费的产出效率高。
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