Based on micro-panel data from Sichuan Province and Jiangsu Province collected in 2022 and 2023, multiple linear regression models are used to explore the impact of different industrial organization models on the green transformation of pig farming. The study found that the participation of pig farmers in pig industrialization organizations significantly promotes the green transformation, particularly in the input factors at the front and middle stages of pig farming, but has no significant impact on the final stage. The “company+farmer” model significantly promotes the green transformation of pig farming, but the promotion effect of the “cooperative+farmer” model is minimal. Further, industrialized organizations mainly promote green transformation by improving farmers’ breeding technology, reducing financing constraints, and decreasing medical and epidemic prevention costs. In addition, livestock socialization services lessen the role of industrialized organizations in contributing to the green transformation. Finally, different types of industrialized organizations can significantly promote green transformation for farmers without implementing the planting and breeding cycle.