To provide a sterilizing apparatus and a sterilizing method for performing more efficient sterilization.A sterilization apparatus according to the present invention comprises a sterilization chamber for containing a sterilized object, a supply unit for supplying a sterilizing agent containing liquid hydrogen peroxide into the sterilization chamber, a supply unit located in the sterilization chamber, And an evapor for evaporating the liquid hydrogen peroxide in the sterilization chamber.(FIG.【課題】より効率的な滅菌を行うための滅菌装置及び滅菌方法を提供する。【解決手段】本発明に係る滅菌装置は、被滅菌物を収容する滅菌室と、前記滅菌室内に液体過酸化水素を含んだ滅菌剤を供給する供給ユニットと、前記滅菌室内に位置し且つ前記液体過酸化水素を前記滅菌室内で蒸発させる蒸発部とを備えている。【選択図】図4