[目的/意义]探究移动社交媒体用户数字脱瘾行为要素与生成机理，有助于丰富信息行为模型，为深入解析移动社交媒体用户数字脱瘾行为提供理论与应用指导，确保用户现实生活需求与数字设备使用的动态平衡。[方法/过程]基于CAPS理论模型框架，从“情境-认知-情感-行为”四个维度，对移动社交媒体用户数字脱瘾行为进行模型要素解析，并采用关键事件技术法深入挖掘该行为的内在机理，构建移动社交媒体用户数字脱瘾行为机理关系模型。[结果/结论]移动社交媒体用户数字脱瘾行为机理可分为情境驱动、认知联结、情感调控和行为应对4个子机理。移动社交媒体用户数字脱瘾行为管理策略包括寻找替代活动，搭建现实情境；主动代替被动，提升自我认知；制定激励机制，强化正面情感；借助设备功能，约束行为习惯4个方面。

[Purpose/significance] Investigating the elements and mechanisms of digital detox behavior of mobile so⁃cial media users can help to enrich the information behavior model, provide theoretical and applied guidance for the indepth analysis of the digital detox behavior of mobile social media users, and ensure a healthy balance between the us⁃ers' normal life and the time they spend on digital devices. [Method/process] Based on the CAPS theoretical model framework, we analyze the elements of the digital detox behavior of mobile social media users from the four dimensions of "context-cognitive-emotional-behavioral", and we use the key event technology method to deeply excavate the in⁃trinsic mechanism of the behavior, and construct the mechanism-relationship model of the digital detox behavior of mo⁃bile social media users. model. [Result/conclusion] The mechanism of digital detox behavior of mobile social media us⁃
ers can be divided into four sub-mechanisms: situation-driven, cognitive connection, emotional regulation and behav⁃ioral response. The management strategies for digital detox behavior of mobile social media users include four aspects:seeking alternative activities and building real-life scenarios; taking the initiative instead of being passive and enhanc⁃ing self-awareness; establishing incentive mechanisms and strengthening positive emotions; using device functions torestrain behavioral habits.