摘要: [目的/意义]阐明社交媒体用户健康信息焦虑对用户思想和行为的影响，分析健康信息焦虑生成机理，有助于深入了解用户心理，为用户能够更好地应对健康信息焦虑带来的问题和困境提供建议与对策。[方法/过程]基于S-O-R模型和MOA理论对社交媒体用户健康信息焦虑进行模型要素分析，构建社交媒体用户健康信息焦虑包括注意触发、认知调节、感知控制、行为反馈4种机理的生成机理关系模型，解析要素与机理之间以及机理间的内在关联关系。[结果/结论]提出突发公共卫生事件下社交媒体用户健康信息焦虑管理策略，为有效解决社交媒体用户健康信息焦虑提供参考。

Abstract: [Purpose/significance] Clarifying the influence of social media users' health information anxiety on users'thoughts and behaviors and analyzing the generating mechanism of health information anxiety are conducive to indepthunderstanding of users' psychology and providing Suggestions and countermeasures for users to better cope withthe problems and dilemmas brought about by health information anxiety. [Method/process] Based on S-O-R modeland the theory of earth-sized on social media users health information anxiety factor analysis model, build a healthy social media users information including attention to trigger anxiety, cognitive regulation, perceived control, behavior generation mechanism of the feedback mechanism of four kinds of relationship model, analyze the relationship between elements and mechanisms as well as the internal relations between mechanisms. [Result/conclusion] This paper proposeshealth information anxiety management strategies for social media users in the context of public health emergencies, soas to provide references for the effective solution of health information anxiety of social media users.