PROBLEM TO BE SOLVED: To provide an electron beam sterilization method for equalizing an absorbed dose in an irradiated object in an electron beam sterilization method for sterilizing or sterilizing an irradiated object by irradiating the irradiated object with an electron beam. SOLUTION: This is an electron beam sterilization method in which an object to be irradiated is irradiated with an electron beam to sterilize or sterilize, and a region SA in which a shielding material for shielding the electron beam is arranged and a region SB in which the shielding material is not arranged. An irradiation dose adjusting plate 20 having an irradiation dose adjusting plate 20 is arranged between an electron beam extraction window of an electron beam irradiating device and the irradiated object to irradiate the irradiated object with an electron beam. [Selection diagram] Fig. 1【課題】電子線を被照射物に照射して殺菌又は滅菌を行う電子線殺菌方法において、被照射物内の吸収線量を均一化する電子線殺菌方法を提供すること。【解決手段】電子線を被照射物に照射して殺菌又は滅菌を行う電子線殺菌方法であって、電子線を遮蔽する遮蔽材を配置した領域ＳＡと、前記遮蔽材を配置しない領域ＳＢとを有する照射線量調整板２０を、電子線照射装置の電子線取出窓と前記被照射物との間に配置して被照射物に電子線を照射する、電子線殺菌方法。【選択図】図１
