A packaging apparatus includes a conveyance unit having first and second position control plates. The first position control plate is arranged to selectively move forward or backward so as to obstruct or pass the group of packaged objects conveyed on the conveyance unit. When positions of the packaged objects are adjusted, the second position control plate is arranged to move from a downstream-side portion of the conveyance unit toward the first position control plate, rotate in a direction toward the first position control plate. or move from the downstream-side portion of the conveyance unit toward the first position control plate and simultaneously rotate in the direction toward the first position control plate. A subsequent process step delivery unit is arranged to deliver the group of packaged objects after the positions thereof are adjusted by the first and second position control plates, to a subsequent process device.