基于2011~2022年省级面板数据构建固定效应模型和机制检验模型，探究生产性服务业集聚对减污降碳协同治理效率的影响效果和影响机制。研究表明，生产性服务业集聚对减污降碳协同治理效率有倒U形影响，当前主要表现为促进作用。机制检验发现，生产性服务业集聚能通过影响能源消费结构和绿色创新对减污降碳协同治理效率产生非线性影响，其中策略性绿色创新比实质性绿色创新发挥了更大的作用。异质性分析表明，高端生产性服务业能更长期稳定地提高减污降碳协同治理效率；同时，在东部地区和数字基础设施水平更高的地区，生产性服务业集聚能更有效地发挥减污降碳协同治理效应。

Based on the provincial panel data from 2011 to 2022, the fixed effect model and mechanism test model were constructed to explore the impact and mechanism of producer services agglomeration on the efficiency of collaborative governance of pollution and carbon reduction. The results show that the agglomeration of producer services has an inverted U-shaped impact on the efficiency of collaborative governance of pollution and carbon reduction, which is currently mainly manifested as a promotion. The mechanism test found that producer services agglomeration can have a nonlinear impact on the efficiency of collaborative governance of pollution and carbon reduction through the impact of energy consumption structure and green innovation, in which strategic green innovation plays a greater role than substantive green innovation. Heterogeneity analysis shows that high-end producer services can steadily improve the efficiency of collaborative governance of pollution and carbon reduction in a longer term. At the same time, in the eastern region and regions with higher level of digital infrastructure, the agglomeration of producer services can play a more effective role in pollution and carbon reduction.