Based　on　the　method　of　life　cycle　assessment,　this　study　evaluated　the　global　warming　(carbon　footprint)　and　other　environment　impacts　of　hydropower,　and　analyzed　the　differences　in　the　carbon　footprint　of　hydropower　in　different　regions.　The　results　show　that　the　global　warming　impact　(carbon　footprint)　per　unit　of　hydropower　of　the　Three　Gorges　Hydropower　Station　is　12.7　g/(kW·h),　which　mainly　originates　from　the　operation　stage.　The　main　stage　causing　other　environment　impacts　is　the　civil　engineering　stage,　followed　by　the　electro　mechanical　equipment　manufacturing　stage.　The　results　of　regional　analysis　show　that　the　unit　hydropower　carbon　in　different　provinces　is　quite　different,　and　there　are　24　provinces　that　differ　from　the　national　average　by　more　than　±　20%.　The　carbon　footprint　of　each　province　during　the　operation　stage　accounted　for　47.94%　-　96.82%,　and　19　provinces　during　the　operation　stage　accounted　for　more　than　80%.　The　result　can　provide　support　for　the　adjustment　and　optimization　of　the　power　structure　at　national　and　provincial　levels.　©　2024　Beijing　University　of　Technology.　All　rights　reserved.