Abstract：[Purpose/significance] This study aims to construct a value co-creation behavior network among multiple stakeholders, reveal key stakeholders and value flows, and provide a theoretical framework and practical strategies for
optimizing the online health community. [Method/process] Using stakeholder value network analysis, this study takes
health super topics on Weibo as the research object. It constructs a value co-creation behavior network comprising six
types of stakeholders and 35 value flows, and quantitatively measures the importance of stakeholders and value effec⁃
tiveness. [Result/conclusion] The super topic platform, as a key stakeholder in the value co-creation network, along
with sub-key stakeholders (hosts and information producers), forms a collaborative mechanism. The platform and hosts
enhance management efficiency through a two-way constraint mechanism, while third-party institutions have low par⁃
ticipation due to insufficient interaction. The study identifies six high-scoring value loops centered on rule governance,
quality optimization, and deepened interaction, forming a ternary stakeholder short-path collaborative mechanism. It al⁃
so proposes a three-dimensional optimization strategy of "behavior network optimization-value chain transformationactivation
of marginal stakeholders", offering managerial insights for the sustainable development of super topic com⁃
munity.