China’s current rural environmental governance faces a core dilemma characterized by high policy input but low governance effectiveness， manifested as a governance paradox of detached policy implementation， apathetic villager participation， and disembedded technological tools. Using the waste management project in J Town， Mianzhu City， Sichuan Province， as an empirical case study， this research constructs a three-dimensional institutional- emotional-technical synergy framework to systematically explain the internal mechanism through which the dynamic coupling of these three dimensions reshapes environmental governance effectiveness. Specifically， institutional support effectively reconciles the structural conflict between quantifiable metrics and informal rural logic through the complementary embedding of village regulations and administrative assessments. Emotional mobilization follows a progressive path from trust restoration and identity formation to responsibility internalization， translating policies into“ new local conventions” through intergenerational transmission and cultural symbolization， thereby shifting participation from external compulsion to endogenous initiative. Technical empowerment bridges the digital divide via stratified adaptation strategies， seeking a balance between lowering technical barriers and maintaining emotional interaction. The innovation in this framework lies in its integrated mechanisms of bidirectional adaptation， progressive internalization， and stratified adaptation. It provides a practical solution that combines instrumental rationality with value rationality to resolve the governance paradox， offering significant insights for building a resilient governance community.