As the digital foundation of new industrialization and a key driver of new productive forces， the industrial internet is becoming a cornerstone for the green transformation of manufacturing enterprises. Based on the perspective of digital technology affordance and a case study of Haier’s “Sustainable Lighthouse Factory”， it proposed a theoretical framework for how industrial internet platforms facilitate green transformation. The results show that the interaction between the characteristics of digital technology application and organizational transformation goal establishes the conditions for the formation of digital technology affordances. Digital technology affordances internally exhibit a cumulative and aggregative relationship， where the layering and aggregation of secondary affordances create synergistic effects by enhancing internal production factors， production relations， and production capacities. Green transformation of enterprises is primarily reflected in the industrial internet platform’s assistance in the green transformation at three levels of production factors， production relations， and production capabilities. At the production resource level， the platform enables green construction of production factors through affordances of integration and organizational memory. At the production relation level， the platform fosters green connectivity of production relations through affordances of perceptual learning and collaborative interaction. At the production capacity level， the platform drives green leverage of production capabilities through affordances of process management and social interaction. The conclusion enriches theories of enterprise green transformation and digital technology affordance， and provides practical insights for manufacturing enterprises to achieve green transformation via industrial internet platforms.