This method for producing connected packaged products is configured so that transverse joint parts are formed on a continuous tubular sheet (4b) containing a plurality of absorbent articles (3) therein by bonding portions of the continuous tubular sheet in front of and behind each absorbent article in a transverse direction while conveying the continuous tubular sheet in a conveyance direction, and thus a connected packaged product (1) is produced in which a plurality of packaged products (2) comprising a packaging bag containing the absorbent article therein are connected in one direction. The production method comprises the steps of: supplying a continuous tubular sheet containing a plurality of absorbent articles therein and having breathing holes between a portion of the continuous tubular sheet which corresponds to an end of each absorbent article in the conveyance direction and a portion of the continuous tubular sheet in which a transverse joint part opposed to the end is to be formed and forming transverse joint parts extending in the transverse direction of the delivered continuous tubular sheet. The method for producing connected packaged products allows excess air in the packaging bags to be properly released during the formation of the transverse joint parts