Abstract:Based on the data of 1475 micro enterprises, this paper empirically analyzes the impact of environmental pollution liability insurance on enterprise innovation by constructing an intermediary effect model, and tests the role of financing constraints and environmental regulations in it.The results are as follows:environmental pollution liability insurance plays a significant role in improving the level of enterprise innovation; the intermediary effect of financing constraints is obvious, which plays a promoting role between environmental pollution liability insurance and enterprise innovation, but the intermediary role of environmental regulation is not obvious; the nature of property rights in the role of environmental pollution liability insurance on enterprise innovation shows significant heterogeneity Insurance plays a limited role in promoting the innovation level of state-owned enterprises, but significantly improves the innovation level of non-state-owned enterprises.Therefore, we should strengthen the policy guidance and improve the legal system; enhance the diversification and differentiation of products; improve the coordination between environmental pollution liability insurance and environmental regulation; introduce competition mechanism to enhance the competitiveness of the market and stimulate the R & D power of state-owned enterprises.