乡村振兴是实现中国式现代化的必然要求，提升数字经济发展水平可为高质量乡村振兴提供良好条件。从机制层面讨论数字经济影响乡村振兴质量的机理，采用2011—2020年中国内地30个省级行政区面板数据，运用熵权TOPSIS法分别测度乡村振兴质量与数字经济发展指数，并对二者关系进行实证检验。结果显示：数字经济发展对乡村振兴质量具有明显提升作用；科技创新是数字经济提升乡村振兴质量的重要中介变量；异质性分析结果表明，中部和东北地区数字经济提升乡村振兴质量的效果最显著，其次是西部地区和东部地区。因此，必须坚定不移地将数字经济作为新时代提升乡村振兴质量的重要抓手，加快乡村数字基础设施建设，加大数字科技成果向乡村转移转化，加速数字科技与乡村产业、乡村治理的融合，加强数字科技在乡村的多场景多领域应用，不断提升乡村振兴质量。

Rural revitalization is a key solution to “issues concerning agriculture, rural areas and farmers” in the new era. The Fifth Plenary Session of the 19th Central Committee of the Communist Party of China proposed to consolidate the effective connection between poverty alleviation achievements and rural revitalization, and put forward the goal of rural revitalization, which is "prosperous industry, livable ecology, civilized rural culture, effective governance, and prosperous life". The 14th Five-Year Plan of China separates rural revitalization into a separate section. Realizing rural revitalization is an inevitable requirement for realizing the Chinese path to modernization and reflecting the essential characteristics of socialism. The digital economy, with digital resources as the key element, information networks as the important carrier, and technology integration and application as the driving force, helps to improve fairness and efficiency, and is of great significance in solving the dilemma of urban-rural dual structure. In 2022, the scale of China's digital economy reached 50.2 trillion yuan, and the digital economy played an increasingly important role in high-quality development. In the above context, the development of China's digital economy has been increasingly integrating with rural revitalization. In 2021, the level of digital rural development in China reached 39.1%, and the digital economy accelerated its penetration into rural areas, which could comprehensively improve the quality of rural revitalization.#br#Therefore, on the basis of literature and theoretical analysis, this study aims to study the mechanism by which the digital economy affects the quality of rural revitalization, and empirically analyze the effect of the digital economy on the quality of rural revitalization. This will help to better leverage the positive role of the digital economy in rural revitalization. Specifically, this study explores the direct effects of the digital economy on rural revitalization, and uses technological innovation as a mediator variable to explore the indirect effects of the digital economy on rural revitalization. Then it constructs an indicator system for the development level of China's digital economy and the quality of rural revitalization with panel data from 30 provincial-level administrative regions in China from 2011 to 2020, and further measures the quality development level of China's digital economy and rural revitalization using the entropy weight TOPSIS method. The study also empirically analyzes the impact of digital economy development on the quality of rural revitalization.#br#Through the theoretical analysis and empirical analysis, the main conclusions are drawn in three ways, and practical implications are proposed. First, the digital economy has a significant improvement effect on the quality of rural revitalization. At the same time, through various robustness testing methods, this driving effect still exists and remains robust. Second, technological innovation, as an important intermediary variable, is an important path for the digital economy to drive rural revitalization. The development of the digital economy has significantly contributed to the progress of technological innovation, which has once again empowered rural areas and improved the quality of rural revitalization. Third, there are significant differences in the effectiveness of the digital economy in empowering rural revitalization in the eastern, central, western, and northeastern regions. The digital economy has the strongest and most obvious driving effect on the central and northeastern regions, followed by the western and eastern regions. These conclusions suggest that it is essential to firmly regard the digital economy as an important lever to improve the quality of rural revitalization in the new era, and accelerate the construction of rural digital infrastructure. At the same time, it is imperative to strengthen the application of digital technology in multiple scenarios and fields in rural areas, and improve the quality of rural revitalization through digital technology innovation. Finally, it is necessary to rely on different digital economic development paths according to local conditions to improve the quality of rural revitalization in the local area.#br#