[目的/意义]探析移动社交媒体用户数字囤积行为的结构要素与生成机理，有助于丰富信息行为研究的 理论范式，为移动社交媒体用户数字囤积行为现象的解析提供理论与应用参考。[方法/过程]基于I-PACE理论模 型框架，从“用户-情感-认知-行为”四个维度，对移动社交媒体用户数字囤积行为进行模型要素解析，构建移动社 交媒体用户数字囤积行为机理关系模型。[结果/结论]提出移动社交媒体情境下用户数字囤积行为的具体引导策 略，为有效破除数字信息时代下的囤积之困提供参考。

[Purpose/significance] Exploring the structural elements and formation mechanisms of digital hoarding be⁃ havior of mobile social media users helps to enrich the theoretical paradigm of information behavior research, and pro⁃ vides theoretical and applied references for analyzing the phenomenon of digital hoarding behavior of mobile social me⁃ dia users. [Method/process] Based on the I-PACE theoretical model framework, this paper analyzed the elements of mobile social media users' digital hoarding behavior from four dimensions of "user-emotion-cognition-behavior" and constructed a model of the mechanism relationship of it. [Result/conclusion] The specific guiding strategies for the be⁃ havior are proposed to provide reference for effectively solving the hoarding problems in the era of digital information.