Abstract: Against the backdrop of profound transformations in the global trade environment, the “New Three Products” have emerged as new drivers of high-quality trade development in China. Based on patent assignment data related to the “New Three Products” and provincial-level trade data from China, this paper employed social network analysis and regression analysis to examine the structural characteristics and evolutionary patterns of the technology flow networks of the “New Three Products”, empirically testing the trade-promoting effects of these flows. The results show that the global diffusion of “New Three Products” technologies is accelerating. The United States consistently occupies a dominant position in the technology flow network, while the technological influence of Asian economies continues to strengthen. Notably, China has made significant progress in the battery sector, accompanied by a substantial increase in the scale of interprovincial patent technology flows. Empirical results indicate that these technology flows exert a significant positive effect on exports. Furthermore, heterogeneity analysis reveals that these export-promoting effects vary depending on the partner countries in technological cooperation, the types of technology flows, as well as specific industries and regions.