Abstract: The new qualitative transformation of the service industry is a high-quality service economy form with endogenous knowledge production as the core, achieved through the optimization of the service industry structure and the dynamic balance mechanism between supply and demand, and the reshaping of efficiency models. Based on the logical thinking of "elements product industry", this paper elaborates on the theoretical mechanism of digital technology innovation promoting the new quality development of the service industry. Next, an evaluation index system for the new quality development of the service industry is constructed, which includes five dimensions: technological innovation, knowledge accumulation, quality upgrading, business transformation, and economic contribution. It is pointed out that the new quality development of China's service industry presents characteristics of overall low-level slow rise, significant stage heterogeneity, uneven development of various core dimensions, and regional development polarization. Finally, empirical tests were conducted using panel data from 30 provinces in China from 2011 to 2023, and it was found that digital technology innovation can significantly promote the overall and multi-dimensional development of the service industry's new quality. This conclusion still holds true after a series of robustness tests. Mechanism testing shows that upgrading supply side factors, driving demand side momentum, and ensuring institutional environment constitute a triple empowerment path, which can more fully unleash the empowering potential of digital technology innovation for the new quality development of the service industry.

摘要： 服务业新质化是以内生知识生产为核心，通过服务业结构优化与供需双侧动态平衡机制，实现效率模式重塑的高质量服务经济形态。基于“要素—产品—产业”的逻辑思路，阐述数字技术创新促进服务业新质化发展的理论机制。接着，构建包含服务业技术创新、知识积累、品质升级、业态变革和经济贡献五个维度的服务业新质化发展评价指标体系，指出中国服务业新质化发展呈现总体低位缓升、阶段异质性显著、各核心维度非均衡发展以及区域间发展极化的特征。最后，利用中国2011—2023年30个省份的面板数据展开实证检验，发现数字技术创新能够显著推动服务业新质化整体及各个维度发展，该结论经过一系列稳健性检验后仍然成立。机制检验表明，供给侧要素升级、需求侧动能牵引与制度环境保障构成三重赋能路径，能够更加充分地释放数字技术创新对服务业新质化发展的赋能潜力。