Based on ERG theory, information ecosystem theory, social network theory, TAM model, and addiction model, this paper analyzes the motivation, elements and relationships of academic interaction behavior among users in the metaverse UGC community. It interprets the process of academic interaction behavior among users in the metaverse UGC community from three aspects: evolution mechanism, formation mechanism and development ecology. The research founds that behavioral elements and relationships trigger user perceived usefulness as the starting point of behavior; behavioral motivation helps users deepen interactive behavior; the entire behavior process evolves towards efficiency, security, network interconnection and dynamic adjustment. This paper points out that it can be achieved by guiding the formation of user academic interaction behavior through the integration of behavior control mechanism, UGC creation iron triangle and dual line behavior capabilities; adhering to triggering, action, variable rewards and investing in the development ecosystem, the behavior process ends with users being able to produce UGC academic content sets, explicit data and deep interactive behavioral data.