PROBLEM TO BE SOLVED: To provide a method and a device for sterilizing a paper container which can unfailingly sterilize an end surface of paper in sterilization of the paper container.SOLUTION: A sterilant gas of a jetted sterilant gas, which leaks from an inner surface of a paper container 11, is guided to an end surface of the paper container by a guide plate 15 which is provided so as to enclose a jet hole of a nozzle 14 which blows the sterilant gas toward the inner surface of the paper container 11.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2018,JPO&INPIT【課題】紙容器の殺菌において、紙の端面を確実に殺菌することができる紙容器の殺菌方法及び装置を提供する。【解決手段】紙容器11の内面に向けて殺菌剤のガスを吹き付けるノズル14の噴射孔を囲繞するように設けた案内板15により、噴射した殺菌剤のガスのうち内面から漏出した殺菌剤のガスを紙容器の端面に導く。【選択図】図1