Based　on　manually　collected　data　relating　to　board　internationalization,　measured　as　directors＇　experience　gained　in　developed　countries,　this　paper　explores　the　relationship　between　directors＇　foreign　experience　and　the　environmental　information　disclosure　of　Chinese　heavily　polluting　firms　from　2016　to　2019.　We　find　that　directors＇　foreign　experience　has　a　significant　positive　impact　on　environmental　information　disclosure.　These　findings　are　robust　and　consistent　across　various　analytical　models.　In　addition,　empirical　evidence　shows　that　the　positive　effect　of　directors＇　foreign　experience　on　environmental　information　disclosure　is　more　significant　in　state-owned　enterprises　and　firms　with　foreign　ownership.　Our　research　has　important　implications　for　policy-makers　and　regulators.