Due　to　the　large　volume　of　sewage　in　China,　the　efficiency　of　water　consumption　evaluated　by　the　traditional　model　may　be　inaccurate.　This　paper　evaluates　the　water　consumption　efficiency　more　scientifically.　First,　this　paper　uses　the　CCR　model　to　evaluate　the　resource　efficiency　and　environmental　efficiency　separately.　The　latter　is　generally　lower　than　the　former,　which　means　the　issue　of　water　pollution　is　more　serious　than　the　problem　of　water　resource　consumption.　Then,　the　water　consumption　efficiency　is　integrally　evaluated　by　an　eco-inefficiency　model　which　focuses　on　undesirable　outputs.　The　results　are　in　good　agreement　with　the　results　of　the　CCR　model:　(1)　Only　Beijing,　Tianjin,　and　Shanghai　are　eco-efficient　in　terms　of　water　consumption,　water　consumption　efficiency　in　the　southeastern　coastal　areas　is　higher　than　in　the　Midwest,　and　the　overall　water　environment　is　bad;　(2)　China　needs　to　focus　on　reducing　industrial　wastewater;　(3)　the　output　of　water　consumption　has　a　lot　of　room　for　improvement;　and　(4)　the　output　improvement　schemes　of　all　provinces　have　some　similarities　and　are　related　to　many　features.　So,　this　paper　has　made　a　clustering　analysis　of　the　improvement　schemes　and　given　detailed　suggestions　for　improving　the　eco-efficiency　of　water　consumption　in　China　according　to　the　clustering　result.