Abstract: A charged-particle beam irradiation apparatus includes a deflector, a shot data generator generating shot data including a shot number of a charged-particle beam, a deflection controller controlling deflection of the charged-particle beam, a stage controller, an irradiation controller controlling irradiation of the charged-particle beam based on the shot data, and a storage controller configured to, when the irradiation of the charged-particle beam is stopped due to an abnormality occurring in a constituent element other than the irradiation controller, which includes at least one of the shot data generator, the deflection controller, and the stage controller, cause a storage to store therein at least the shot number at the stop of the irradiation, wherein when a condition for resuming the irradiation is satisfied, the irradiation controller resumes the irradiation from a shot number next to the shot number stored in the storage at the stop of the irradiation.