A continuous sterilization system is provided which reliably supports a sterilization target so that the sterilization target is not tipped over during a sterilization process and can stably ensure uniform irradiation periods on any portion of inner and outer surfaces and moreover, a portion sterilized by electron beam irradiation is not contaminated again. The continuous sterilization system is provided with first conveying means for supporting a cylindrical container from a side surface and continuously conveying the same, a first electron beam accelerator for emitting an electron beam from the bottom surface portion side of the cylindrical container during conveyance by this first conveying means, second conveying means for supporting the cylindrical container from the bottom surface portion side sterilized by the electron beam irradiation by the first electron beam accelerator and continuously conveying the same while rotating the cylindrical container along a cylindrical shaft core of the cylindrical container, a second electron beam accelerator for emitting the electron beam over the entire periphery from the side surface portion side of the cylindrical container during conveyance by this second conveying means, and a third electron beam accelerator for emitting the electron beam from an opening portion side to an inner surface portion of the cylindrical container during conveyance by the first conveying means or the second conveying means.
