Against the background of the new curriculum reform, the development and utilization of social curriculum resources have become an important path to promote interdisciplinary project-based learning. Taking the“Thin Belt on Mengqing Garden”project of our school as an example, this study elaborates on how to transform urban parks, a typical social resource, into learning scenarios. Centering on the real problem of“how to optimize fi tness trails to enhance residents’fourseason fitness experience”, the project guides students to carry out interdisciplinary project-based inquiry. This study systematically analyzes how the project promotes the in-depth integration of knowledge from geography, physical education, mathematics, information technology, fine arts and other disciplines through the implementation model of“resource transformation - problem-driven - practical inquiry - value sublimation”, and effectively cultivates students’geography praxis, social responsibility and comprehensive problem-solving ability. The project fi nally forms a feasible design scheme and submits the proposal through a public platform, realizing the social transformation of learning outcomes, and providing a practical paradigm for carrying out interdisciplinary learning relying on geography curriculum resources in real social fi elds.