探究在线视频社区用户自我披露行为的影响因素，有助于在线视频社区改善对用户个人信息披露的管理，提高用户活跃度和粘性。文章以MOA为理论基础，以bilibili为研究情境，通过二手客观数据抓取1，453，652名有效用户数据，从动机（M）、机会（O）、能力（A）三个维度探究在线视频社区用户自我披露行为的影响因素。研究发现：经济奖励、社会支持以及用户地位均对用户自我披露行为具有显著的正向影响，而同侪认可对于用户自我披露行为具有显著的负向影响。在科技区、运动区和知识区等独立分区下，同侪认可对于用户自我披露行为具有显著的正向影响。研究可为在线视频社区的隐私政策制定以及精准推送提供借鉴。

Exploring the influencing factors of users’ self-disclosure behavior in online video communities can help improve the management of user personal information disclosure, and improve user activity and stickiness. Using MOA theory as the theoretical foundation and bilibili as the research context, this study explores the influencing factors of online video community users’ self-disclosure behavior from three dimensions: motivation (M), opportunity (O), and ability (A) through second-hand objective data capture including 1,453,652 effective users. This study has found that financial rewards, social support, and user status-standing all have a significant positive impact on users’ self-disclosure behavior. In contrast, peer recognition has a significant negative impact on users' self-disclosure behavior. In independent zones such as technology zones, sports zones, and knowledge zones, peer recognition has a significant positive impact on users’ self-disclosure behavior. Research can provide suggestions for privacy policy formulation and precise push of online video community platforms.