Abstract:In order to examine the effectiveness of different environmental regulations on technological innovation, this paper analyzes the relationship between four types of environmental regulation tools and enterprise green technological innovation by using benchmark regression model, intermediary effect model and threshold effect model. The study found that, compared with environmental administrative punishment and regional environmental policies and regulations, the collection of sewage fee and the government"s energy conservation and environmental protection financial expenditure are more conducive to promoting enterprise green technology innovation, reflecting the differences in the impact of different environmental regulation tools on green technology innovation. Further through the intermediary effect model and threshold regression model analysis, collects pay fees and government expenditure of energy conservation and environmental protection are through ascension enterprise R D strength to push the green technological innovation, but the effect of four types of environmental regulation tools with their respective strength improve present travel characteristics of alienation, collects pay fees, government expenditure of energy conservation and environmental protection from negative impact to the business of green technology innovation is, by not significant change significantly, environmental administrative punishment with the higher strength is more hinder the green technology innovation, and the intensity of environmental policies and regulations in no matter how, their effects on green technology innovation were not significant.