Green technology innovation is an important guarantee for the realization of the “dual-carbon” goal, and it also plays an important role in promoting the development of the green economy. As societies evolve towards sustainable economic practices, the imperative to enhance the efficiency of green technology transfers has emerged as a pressing concern. This study delves into the dynamics between various elements, synthesizing the roles of technology intermediaries, trust, information sharing, and the transactional efficiency of both supply and requisitioning parties within the process of green technology transfer. Utilizing the Likert scale method for reliability and validity analysis, along with mediation effect verification, the research uncovers that technology intermediaries can foster a congenial trading atmosphere, facilitating the rapid establishment of trust between parties. Consequently, this atmosphere is more conducive to confidential transactions, significantly boosting the desire for information sharing among the participants in technology transfer. This study contributes to minimizing transaction costs and is of paramount importance in enhancing the transactional efficiency of green technology transfers between the transactional efficiency of both supply and requisitioning parties within the process of green technology transfer.