English：

As an innovative construction method, modular construction is characterized by its core featureof factory prefabrication,which distinguishes it significantly from traditional building projects. Based onthe practical case of Anju Jingxinyuan project （ former No. 6 Meilin Road affordable housing project），this paper explores the key mechanisms of digital archiving for modular construction projectdocumentation. Firstly, it conducts a comparative analysis of the differences and advantages betweenmodular and traditional construction projects,with a focus on the characteristics of the factory⁃centeredconstruction documentation management model. Secondly, a technical framework for modular constructionproject documentation management is constructed, and the digital implementation process of key steps isillustrated in combination with practical operational scenarios. Finally, the implementation outcomes arevalidated through the application of Anju Jingxinyuan project and the C⁃smart digital system. Theresearch demonstrates that the integration of modular construction and digital archiving technology caneffectively address the inherent challenges of traditional documentation management models.