As　an　important　tool　for　water　resource　environmental　impact　assessment,　the　application　of　water　footprint　assessment　method　in　copper　production　process　is　conducive　to　more　accurate　assessment　of　water　resource　environmental　impact　in　copper　production　process.　The　water　footprint　assessment　method　released　by　the　Water　Footprint　Network　was　used　to　study　the　water　footprint　of　the　production　process　of　cathode　copper　products　produced　by　pyrometallurgy.　It　was　found　that　the　water　footprint　of　1　ton　of　copper　produced　by　pyrometallurgy　was　242m3,　of　which　the　blue　water　footprint　accounted　for　60%,　the　grey　water　footprint　accounted　for　40%.　The　direct　water　footprint　accounted　for　67%　and　the　indirect　water　footprint　accounted　for　33%.　The　characteristics　of　water　footprint　contribution　at　each　process　were　compared,　which　provided　data　support　and　reference　for　enterprises　to　better　understand　the　water　resource　environmental　impact　of　copper　by　pyrometallurgy　and　to　choose　the　water　resource　utilization　mode　with　their　own　production　characteristics.　©　2021　Trans　Tech　Publications　Ltd,　Switzerland.