Abstract: Against the strategic backdrop of new-era high-quality development and industrial convergence, the integrated advancement of sports, culture, and tourism (SCT) has emerged as an inevitable trajectory in the evolution of modern sports ecosystems. Employing content analysis and quantitative methodologies, this study systematically deciphers the theoretical underpinnings and spatiotemporal dynamics of SCT convergence, investigates its high-quality development attributes, and delineates pathways for establishing a China-specific SCT framework. Key findings demonstrate that China’s SCT practices manifest distinct localized characteristics. Through dual-driven theoretical reconfiguration and pragmatic innovation, this tripartite integration has engendered a spatiotemporal evolutionary mechanism and industrial architecture reflective of Chinese contextual particularities. To fulfill high-quality development imperatives, China’s SCT ecosystem with distinctive Chinese developmental prototype must be constructed through five synergistic pillars: theoretical paradigms, operational models, technological interoperability, institutional mechanisms, and evaluative metrics. By harmonizing conceptual autonomy with grounded experimentation, this approach catalyzes the symbiotic coordination of sports, cultural, and tourism systems, ultimately forging such an ecosystem.