PROBLEM TO BE SOLVED: To provide an electron beam sterilizer which can evenly and efficiently irradiate an outer peripheral surface of a container with electron beams while having a simple structure.SOLUTION: The electron beam sterilizer includes: a rotary body 2 which holds and transports a container P by a container holding means 10 set at equal intervals on the circle of the outer periphery part thereof a container receiving and supplying device which receives and supplies the container transported from an upstream to a container holding means an electron beam irradiation device which irradiates the container transported by the rotary body with electron beams to sterilize the container a container receiving and discharging device which discharges, from the container holding means to a downstream, the sterilized container that is sterilized by the irradiation of the electron beams and a rotary support means 20 which rotates and supports the container holding means 10 and has a rotation axis center C2 offset from the axis center C1 of the container P held by the container holding means 10.COPYRIGHT: (C)2012,JPO&INPIT【課題】簡素な構造でありつつ、容器の外周面に電子線照射を一様に且つ効率よく照射する。【解決手段】外周部に円周等分に設けられた容器保持手段10で容器Pを保持して搬送する回転体2と、上流から搬送されてくる容器を容器保持手段に受渡し供給する容器受渡し供給装置と、回転体によって搬送される容器に電子線を照射して容器を殺菌する電子線照射装置と、電子線照射により殺菌された殺菌済容器を容器保持手段から下流に排出する容器受渡し排出装置と、容器保持手段10を回転支持し、容器保持手段10に保持された容器Pの軸心C1からオフセットされた回転軸心C2を持つ回転支持手段20と、を備える。【選択図】図2