Shape-controlled　Palladium　(Pd)　nanocrystals　have　been　widely　investigated　as　catalysts　for　various　catalytic　reactions.　In　this　paper,　we　report　the　use　of　glucose,　ascorbic　acid,　and　citric　acid　as　reducing　agents　for　the　shape-controlled　synthesis　of　Pd　nanocrystals.　The　so-prepared　Pd　nanocrystals　were　loaded　on　CeO2　to　form　the　Pd/CeO2　catalysts.　The　Pd/CeO2　catalyst　produced　with　Pd　nanocrystals　(Pd/CeO2-g)　that　have　been　reduced　by　glucose　showed　higher　catalytic　activities　than　the　ones　generated　by　using　ascorbic　acid　and　citric　acid.　Additionally,　Transmission　electron　microscopy,　X-ray　diffraction,　Temperature　programmed　reduction　and　Xray　photoelectron　spectroscopy　results　showed　that　Pd/CeO2-g　catalysts,　which　have　the　exposed　high-energy　surface　{110}　crystallographic　facets,　possessed　large　amounts　of　oxygen　vacancies,　which　could　improve　the　catalytic　activity.　Therefore,　this　work　provides　a　new　alternative　to　reduce　the　usage　of　noble　metal　in　catalytic　reaction:　indeed,　glucose　can　be　employed　as　a　reducing　agent　to　prepare　{110}　facets　Pd　nanocrystals,　which　could　be　used　to　synthesise　Pd/CeO2　catalyst　with　excellent　catalytic　properties.