[目的/意义]算法推荐类APP吸引了大量用户使用，提高用户留存率一直是各类应用关注的重点。文章 探索了用户流失行为的影响因素，为减少用户流失、提升用户使用体验提供建议和对策。[方法/过程]文章采集算 法推荐类APP用户评论9772条，采用扎根理论对数据进行编码，以此厘清用户流失行为影响因素，构建算法推荐 类APP用户流失行为影响因素模型。[结果/结论]信息因素、环境因素、系统因素、网络社群通过影响用户的控制 感间接影响用户流失行为，用户的信息素养在控制感和用户流失行为中起调节作用。

[Purpose/significance] Algorithm recommendation APP has attracted a large number of users, and improv⁃ ing user retention has been the focus of all kinds of APP. This study explores the influencing factors of user churn be⁃ havior, and provides suggestions and countermeasures to reduce user churn and improve user experience. [Method/ process] The paper obtained 9772 comments from the users of the algorithm recommendation APP. The grounded theo⁃ ry was applied to code the data to clarify the influencing factors of user churn behavior and build the influencing factors model of user churn behavior of the algorithm recommendation APP. [Result/conclusion] Information factors, environ⁃ mental factors, system factors, and online communities influence user churn behavior by affecting users’sense of con⁃ trol, and users’information literacy plays a moderating role in the sense of control and user churn behavior.