Abstract: Based on the theoretical research of industrial agglomeration and the environmental demands of green development, this paper takes the green total factor productivity of 30 provinces(cities) in China from 2004 to 2016 as the research sample, uses the panel threshold model to explore the impact of producer service industry agglomeration on green total factor productivity from the perspective of supply side, proves that producer services agglomeration has structural mutation effect on green total factor productivity from the perspective of specialization agglomeration and diversification agglomeration, and further discusses the characteristics of internal industry segmentation agglomeration.The results show that in different perspectives of agglomeration, energy intensity and economic development level have different threshold effects on green TFP;at the national level, specialized agglomeration has a certain degree of inhibition on green TFP, and diversified agglomeration shows a more obvious role in promoting it; at the industry level, specialized agglomeration of subdivided industries has obvious characteristics of industry heterogeneity, and financial industry is the key industry to enhance green TFP.

Key words: productive service industry, green total factor productivity, threshold effect