Abstract: Disclosed is a process and an apparatus for assembly-packaging pellet-like articles in units of a predetermined, characterized in that a pellet-like articles group is ejected toward a packaging film locating at a stand-by position to be gripped together with the packaging film half-wrapped around the pellet-like article group by an article holding means; overlapping edges of the packaging film gripped by the article holding means are put together and preheat-seated, followed by sealing thereof to form a sealed rib; the sealed rib is folded down along the barrel of the pellet-like article group and heat-sealed; each open end portion of the tubular packaging film is gussetted and partially sealed; the gussetted and partially sealed portions are sealed fully to form sealed tabs, and the unnecessary portions of the tabs are cut off; and the sealed tabs are folded down along end faces of the assembled pellet-like article group and heat-seated.