A seedling-cutting apparatus includes a pair of arms (211, 212) that is to nip a portion of a stem of a seedling for grafting and that can be opened and closed and a blade (111) that is provided so as to be capable of reciprocating relative to the portion of the stem. At least one of the pair of arms (211, 212) includes a through hole (210) or a cutout that penetrates a portion of the arms (211, 212) along a direction in which the blade reciprocates. At least a portion of the through hole (210) or the cutout faces the portion of the stem and at least a portion of the blade (111) moves through the through hole or the cutout.
