Abstract: Graphite oxide was prepared by improved Hummers method.Through the hot peeling and supersonic peeling of the obtained graphite oxide,we can obtain double-decked,even single-layer graphene oxide piece.was obtained.Then the chemistry groups such as carboxylCOOH,hydroxylOH,CarbonylC = O and epoxy group were removed through chemical reduction——hydrazine hydrate reduction method.effect of reducing agent amount and reaction time on each chemistry function groups was in vestigated.