Economic policy uncertainty (EPU) is a major source of risk that could affect corporate environmental behaviors. We investigated the impact of EPU on environmental information disclosure by using 15,308 firm-year observations from 2,316 Chinese manufacturing firms between 2010 and 2020. Our study shows that EPU can be an incentive for firms to disclose environmental information. This finding supports the voluntary disclosure theory that firms are prone to disclose more environmental efforts in times of high EPU. Furthermore, the results show that the positive relationship between EPU and corporate environmental information disclosure can be positively moderated by media attention and financing constraints. Firms in competitive industries and heavily polluting industries provided better environmental information disclosure when facing uncertainty. Our results provide implications that managers should emphasize the quality of disclosure and use environmental information disclosure as a key strategy to deal with EPU.