Green innovations are crucial in promoting environmental sustainability, especially in the long run. Environmental pollution liability insurance (EPLI) facilitates firms better dealing with pollution-related risks, encouraging firms to invest in green innovation activities. This paper studies the impact of firms’ EPLI coverage on green innovation activities using data from Chinese heavily polluting firms. Results show that EPLI increases firms’ green innovations, both in terms of quantity and quality. Further mechanisms study suggests that EPLI improves the cash flow conditions and reduces agency costs of the board, which explains the positive effect of EPLI on green innovations.