【摘要】 国家创新型城市建设是中国实施创新驱动发展战略的具体实践，对经济高质量发展意义深远。基于创新能级视角，实证分析国家创新型城市建设对经济增长质量的影响效应，以及创新能级转变过程中的差异化作用机制。研究发现，国家创新型城市建设能够提升经济增长质量，这一结论在经过安慰剂等系列稳健性检验后，基准回归结果仍然成立。异质性分析表明，在东部区域、高城市流及科教资源水平较高的城市中，创新驱动政策对经济增长质量的促进效应更加明显。中介效应检验结果表明，国家创新型城市建设后期对渐进式创新与颠覆性创新的动态影响效应存在差异，国家创新型城市建设主要通过颠覆性创新提升经济增长质量。为进一步提升经济增长质量，建议加快推进国家创新型城市建设，因地制宜探索差异化的创新发展路径，坚持“一城一策”，优化创新资源配置效率，强化创新能力培育。更多还原

【Abstract】 The construction of national innovative cities is a concrete practice of China’s implementation of the innovation driven development strategy,which has profound significance for high-quality economic development. Based on the perspective of innovation level,this paper empirically analyzes the impact of national innovative city construction on the quality of economic growth,as well as the differential mechanism in the process of innovation level transformation. Research has found that the construction of national innovative cities can improve the quality of economic growth,and this conclusion still holds true after a series of robustness tests such as placebo. Heterogeneity analysis shows that in the eastern region,cities with high urban flow and high levels of scientific and educational resources,the promotion effect of the quality of economic growth in the construction of national innovative cities is more significant. The results of the mediation effect test indicate that there are differences in the dynamic impact effects of gradual innovation and disruptive innovation in the later stage of the construction of national innovative cities. The construction of national innovative cities mainly improves the quality of economic growth through disruptive innovation.To further enhance the quality of economic growth,it is recommended to accelerate the development of national innovative cities,explore differentiated innovation pathways tailored to local conditions,adhere to the “one city,one policy” approach,optimize the efficiency of innovation resource allocation,and strengthen the cultivation of innovation capabilities.更多还原