This　paper　represents　a　compiler　for　XQuery　that　obtains　a　more　efficient　performance　by　translating　its　programs　to　Java　bytecode.　It　gives　an　overview　of　the　system　design　with　multi-phase　translation　structure,　and　describes　the　translation　algorithm　in　detail.　According　to　the　result　of　performance　experiments,　running　programs　in　Java　bytecodes　generated　by　the　compiler　have　better　performance　than　the　interpretation　of　their　source　programs.