以2017至2025年中国A股制造业上市公司为样本，实证检验数字化转型对企业经营绩效的影响效应、创新传导机制，并结合制造业行业特性，探究数字化转型对制造业产业发展的赋能作用。研究表明，数字化转型能够显著提升制造企业经营绩效，创新在二者之间发挥部分中介作用。从产业层面来看，微观企业的数字化转型具备技术溢出与产业链协同效应，能够推动制造业整体效率提升、产业结构优化。本文立足微观企业与宏观产业双视角，丰富了制造业数字化转型的实证研究成果，为制造企业数字化升级、政府出台产业数字化扶持政策，推动制造业高质量发展提供实践参考。

Using a sample of Chinese A-share listed manufacturing firms over 2017–2025, this study empirically examines the performance effects of digital transformation, the mediating mechanism of innovation, and the enabling role of digitalization in manufacturing industrial development, with attention to sector-specific characteristics. The results show that digital transformation significantly improves firm operating performance, with innovation serving as a partial mediator. At the industrial level, firm-level digitalization generates technology spillovers and supply-chain synergy effects, contributing to overall efficiency gains and structural optimization of the manufacturing sector. By integrating both micro-level firm behavior and macro-level industrial dynamics, this paper enriches the empirical evidence on manufacturing digitalization and offers practical implications for firm upgrading, policy formulation on industrial digitalization, and high-quality development of the manufacturing industry.