Effect　of　addition　of　the　ZrO2　and　Nb2O5　promoters　on　the　activity　and　stability　of　the　Au/Fe2O3　catalysts　in　the　WGS　reaction　under　hydrogen-rich　conditions　was　studied.　Results　showed　that　this　new　catalyst　possesses　enhanced　activity　and　stability　under　conditions　common　in　fuel　processors.　Its　CO　conversion　almost　reached　the　maximum　value　99%　at　200　degrees　C　and　maintained　better　stability　compared　with　unmodified　samples　within　50　h　on-stream.　Detailed　characterization　including　BET,　XRD,　HRTEM,　XPS,　XRF　and　H-2-TPR　revealed　that　ZrO2　and　Nb2O5　acted　as　structural　promoters　and　a　strong　interaction　between　ZrO2　and　Nb2O5　existed.　The　enrichment　of　Zr　and　Nb　on　the　surface　kept　the　gold　and　magnetite　particles　apart　delaying　sintering.　More　active　gold　sites,　larger　surface　area　and　smaller　magnetite　particles　were　the　main　reasons　for　the　enhanced　performance.