[目的/意义]在国家文化数字化战略背景下，以线性文化遗产数据为研究对象，从哲学视角审视线性文化遗产数据语义增强机制，推动线性文化遗产数据智慧化建设。[方法/过程]文章主要从“道”“器”“用”三个维度构建线性文化遗产数据语义增强机制的认知框架，以信息加工理论和认知图式理论为基础，以用户对线性文化遗产的渐进性认知过程为研究主线，提炼出“用户感知与数据编码”“内容表征与知识联结”“语义拓展与情境解释”三个螺旋上升式认知过程，在此基础上构建线性文化遗产数据语义增强机制的技术体系。[结果/结论]文章提出的
认知框架和技术体系，从顶层设计维度为线性文化遗产数据智慧化管理及开发利用提供理论层面的路径参考，为打造线性文化遗产智慧数据基础设施提供坚实的理论基础。

[Purpose/significance] In the context of the national cultural digitization strategy, this article takes linear cultural heritage data as research subject and examines the semantic enhancement mechanism of linear cultural heri⁃tage data from a philosophical perspective. It provides a theoretical foundation for the intelligent construction of linear cultural heritage data. [Method/process] This paper primarily constructs a cognitive framework for the semantic en⁃hancement mechanism of linear cultural heritage data from three dimensions: "Dao" "Qi" and "Yong". Based on infor⁃mation processing theory and cognitive scheme theory, focusing on the progressive cognitive process of users towards linear cultural heritage, the article extracts three spiral upward cognitive processes: "user perception and data encod⁃ing" "content representation and knowledge linkage" and "semantic expansion and contextual interpretation". Based on this, a technical system for the semantic enhancement mechanism of linear cultural heritage data is constructed. [Re⁃sult/conclusion] The cognitive framework and technical system proposed in this paper provide theoretical guidance for the intelligent management and development of linear cultural heritage data from the top-level design perspective, lay⁃ing a solid theoretical foundation for the infrastructure of linear cultural heritage.