论文以广州市为研究样本，旨在分析科技创新对我国城市经济增长的影响及变化情况。为确保分析结果的准确性，运用超越对数生产函数、公式法和经验参数法对2001-2019年广州市科技创新对经济增长贡献率进行测算和评估。研究发现，受加入WTO、创新资源基数较低以及制度红利等因素影响，广州在2001-2008年间科技创新贡献率有较大提升。2013年以后，随着我国经济发展进入“新常态”，经济增长对新技术的质量要求更高了，且经济增长方式从原来依靠外资技术外溢性带来的技术推动开始向依靠自主创新的生产模式转变，而转变过程中受国内外市场环境冲击、经济发展模式转变、制度性因素限制增强以及自主创新自时滞性较长等诸多因素影响，以自主创新为主的新技术对区域经济增长推动作用在短期内发挥的作用相对有限，但从长期看推动作用呈不断增强的趋势。

The paper is based on the sample of Guangzhou City, aiming to analyze the impact and changes of technological innovation on urban economic growth in China. In order to ensure the accuracy of the analysis results, using the surpassing logarithmic production function, formula method and empirical parameter method to calculate and evaluate the contribution rate of technological innovation to economic growth in Guangzhou in the years 2001-2019. The study found that, Influenced by factors such as WTO accession, the low innovation resource base and the institutional dividend, Guangzhou contributed greatly to technological innovation in 2001-2008 years. After 2013, as China's economic development entered the "new normal", economic growth demanded higher quality of new technologies，and the mode of economic growth has changed from technology driven by the spillover of foreign technology to production mode relying on independent innovation. However, due to the impact of market environment at home and abroad, the transformation of economic development mode, the increase of institutional factors and the long time lag of independent innovation, the new technology based on independent innovation has relatively limited role in promoting regional economic growth in the short term, but in the long term, its role is increasing.

本文是广州市人文社会科学重点研究基地“超大城市现代产业体系与广州实践研究基地”、国家青年自科项目“基于中资企业分支网络全球扩展的世界城市网络的空间演化与机制——以高级生产性服务业为例”（41801167）”和广州市软科学专项课题“广州科技创新对新动能增长贡献研究（201901040002）”的阶段性成果。