Using　γ-Al2O3　as　a　support,　a　multiple-metal　(Ni-Cu-Mn-K/Al2O3)　catalyst　for　high-temperature　water　gas　shift　reaction　was　prepared　by　an　equivalent-volumetric　two-step　impregnation　method.　Preparation　parameters　and　reduction　conditions　were　determined　by　TG,　DTA　and　TPR　characterization　techniques.　The　results　showed　that,　when　loading　ratio　(Ni:Cu:Mn),　impregnation　time,　and　calcination　temperature　were　2:1.5:1300　min　and　400°C　for　the　first-step　impregnation　respectively,　loading　of　K+　was　5%　in　the　second　step　impregnation,　and　reduction　temperature　was　400°C　and　a　proper　amount　of　steam　was　added,　the　catalyst　prepared　in　this　work　showed　excellent　catalytic　performance　and　thermal　stability,　as　compared　with　the　existing　commercial　catalysts.　Meanwhile,　the　ammonium-nitrogen　wastewater　produced　with　conventional　preparation　methods　was　eliminated　with　the　eqivalent-volumetic　impregnation　method　proposed　in　this　work.