高技术企业具有知识密集、技术密集等特点，是促进我国经济与社会发展的重要部分，在国家发展中占据极其重要的地位。根据高技术企业技术创新的特点，在考虑时滞效应的基础上构建高技术企业技术创新的两阶段投入产出指标体系，应用动态两阶段DEA模型对两个阶段的绩效进行评价，通过对我国27个省域2012-2015年高技术企业技术创新绩效的评价，全面分析各省高技术企业在技术研发以及技术转化两个阶段的效率。研究表明：我国各省之间的高技术企业在技术创新水平上存在很大差距，而且大部分地区的高技术企业存在重视中间成果而忽略商品化产出的问题，需针对不同地区企业技术创新的差异性提出更具针对性的对策。研究成果为更客观的评价我国不同地区间高技术企业技术创新水平提供了工具，为不同地区制定相应的高技术企业技术创新政策提供了决策依据。

 The high-tech enterprise, which is knowledge-intensive and technology-intensive, is not only a necessary element to promote the development of economy and society, but also plays an important role in national development. According to the characteristics of technological innovation of high-tech enterprises as well as the time lag effect, we construct the two-stage input-output index system of technological innovation of high-tech enterprises. Then we evaluate the two-stage performance by using the two-stage DEA model. Through the evaluation of the technological innovation performance of high-tech enterprises in 27 regions of China from 2012 to 2015, this paper comprehensively analyzes the efficiency of the high-tech enterprises in the technology research stage and technology transform stage. It is found that from the perspective of technological innovation level, there is a big gap among the high-tech enterprises in our country. Moreover, the high-tech enterprises in most areas tend to focus on the intermediate achievements and ignore the commercialization of production. Therefore, aimed at the differences of technological innovation of enterprises in different regions, we need to put forward more targeted measures. The research results provide a tool for a more objective evaluation of the technological innovation level of high-tech enterprises in different regions in China. Meanwhile, they also provide a decision-making basis for formulating the corresponding high-tech enterprise technological innovation policies.