Abstract: Based on the mediating effect model and provincial panel data from 2007 to 2016, this paper builds a theoretical analysis framework of the mechanism of heterogeneous environmental regulation, technological innovation and industrial greening and the index system of heterogeneous environmental regulation and industrial greening, in order to empirically test the mechanism of heterogeneous environmental regulation and technological innovation driving industrial greening. The results show that administrative environmental regulation has an inhibitory effect on industrial greening, and there is no mediating effect of technological innovation, that there are a partial mediating effect of market-based environmental regulation on industrial greening, which can be restrained by "crowding out effect" of technological innovation, that the relationship between public environmental regulation and industrial greening is a sole mediating effect, and public environmental regulation can promote industrial greening through the "incentive effect" of technological innovation, that the conclusion that the mediating effect of technological innovation driven by heterogeneous environmental regulation on industrial greening remains unchanged after the robustness test.

Key words: heterogeneous environmental regulation, technological innovation, industrial greening, mediating effect