This tablet packaging method comprises: a step in which a long sheet material that is a material for a package is conveyed in the lengthwise direction; a step in which, for each patient, all of one type of prescribed tablet is introduced into a packaging space that is formed by the conveyed long sheet; a step in which the long sheet material is sealed so that the packaging space into which the tablets have been introduced forms an airtight section; and a step in which the long sheet material having either one or a plurality of the sections formed therein is cut into each predetermined unit in the lengthwise direction.