为揭示数字营商环境影响城市创业活跃度的内在机制，基于2013—2022年我国城市面板数据，采用双向固定效应模型进行实证检验，结果表明，优化数字营商环境可显著提升城市创业活跃度，主要通过促进区域创新、降低制度性交易成本和缓解融资约束发挥作用，并通过人力资源和教育资源禀赋强化这一影响。数字营商环境优化对创业的促进效应存在边际递减特征，且与传统营商环境之间存在互补关系。在创新驱动、制度性交易成本降低和融资约束缓解等关键机制上，数字营商环境展现出明显的比较优势。基于研究结论提出政策建议，以期丰富数字营商环境与创业关系认知的理论视角，为提升区域创业活力与制度创新提供决策参考。

To uncover the mechanisms through which the digital business environment affects urban entrepreneurial vitality， this study uses city-level panel data for China from 2013 to 2022 and conducts empirical analysis based on a two-way fixed effects model. The results show that improving the digital business environment significantly promotes urban entrepreneurial vitality. This effect operates mainly by stimulating regional innovation， reducing， and improving the financing environment， and is further strengthened by local endowments of human capital and educational resources. The entrepreneurial effect of the digital business environment exhibits diminishing marginal returns， while the digital and traditional business environments are complementary. Compared with the traditional business environment， the digital business environment demonstrates clear comparative advantages in promoting innovation， reducing institutional transaction costs， and optimizing financing conditions. Based on these findings， this study proposes policy implications aimed at enriching the theoretical understanding of the relationship between the digital business environment and entrepreneurship， and at providing decision-making references for enhancing regional entrepreneurial vitality and institutional innovation.