An object of the present invention is to efficiently sterilize the outer surface of an object to be sterilized such as a beverage, food, or pharmaceutical container. An electron beam sterilization system according to the present invention is an electron beam sterilization system that sterilizes an object to be sterilized (C) while being conveyed along a conveyance path (R), and is provided on the outer surface of the object to be sterilized (C). When sterilizing the outer surface of the sterilization object (C) by irradiating with an electron beam, the sterilization object (C) and the outer surface sterilization emitter are different in a direction different from the direction along the conveyance path (R). And a relative movement device for relatively moving the two.【課題】飲料、食品、医薬品の容器といった滅菌対象物の外面を効率よく滅菌することを目的とする。【解決手段】本発明の電子線滅菌システムは、滅菌対象物（Ｃ）を搬送経路（Ｒ）に沿って搬送しながら滅菌する電子線滅菌システムであって、滅菌対象物（Ｃ）の外面に電子線を照射して滅菌する外面滅菌エミッタと、滅菌対象物（Ｃ）の外面を滅菌するに際して、搬送経路（Ｒ）に沿う方向と異なる方向に、滅菌対象物（Ｃ）と前記外面滅菌エミッタとを相対移動させる相対移動装置とを備える。
