Abstract:Amid intensifying ESG disclosure mandates and escalating capital market demands for non-financial transparency, whether directors' and officers' liability insurance (D&O insurance)—an institutional arrangement combining risk-sharing and external governance attributes—influences corporate ESG disclosure remains empirically unexplored. Using a sample of Chinese A-share listed companies from 2010 to 2024, this study examines the effect of D&O insurance on corporate ESG information disclosure and tests whether litigation risk perception mediates this relationship.We document that firms with D&O insurance exhibit significantly higher levels of ESG information disclosure than those without such coverage. This finding withstands a battery of robustness tests, indicating that D&O insurance generates an overall incentive and disciplinary effect rather than a purely opportunistic one. Mechanism analyses reveal that litigation risk perception partially mediates the effect of D&O insurance on ESG disclosure. Specifically, D&O insurance enhances disclosure by mitigating managerial concerns regarding potential litigation consequences and reducing the expected risk costs of information disclosure.Cross-sectional analyses further indicate that this positive effect is more pronounced among non-state-owned enterprises, firms with higher institutional ownership, firms audited by non-Big Four international accounting firms, and firms with greater analyst coverage. Disaggregated tests by ESG dimension show that this effect is concentrated in the environmental and social pillars, whereas the governance dimension, though positively signed, is statistically insignificant.This study extends the literature on the economic consequences of D&O insurance and the determinants of ESG disclosure by underscoring the external governance function of insurance mechanisms. It provides novel empirical evidence on how risk-sharing institutions shape corporate non-financial transparency and offers policy implications for coordinating D&O insurance institutional design with ESG disclosure regulation.