A bagmaking and packaging apparatus comprising a film supply unit disposed in a rear portion of the apparatus and configured to supply sheet-like film; a former mechanism including a former and a tube and being disposed forward of the film supply unit, the former mechanism configured to form in a tubular shape the sheet-like film supplied from the film supply unit, a transverse sealing mechanism configured to transversely seal the tubular film in which a product being supplied from above; and plural upright support posts that configure a frame that surrounds at least part of each of the film supply unit, the former mechanism, and the transverse sealing mechanism, wherein the plural support posts include: a first support post group including a plurality of the support posts disposed on one lateral side of the bagmaking and packaging apparatus in a left and right direction; and a second support post group including a plurality of the support posts disposed on the other lateral side in the left and right direction, a first support post disposed foremost among the support posts of the first support post group extends from a low position to a position higher than the transverse sealing mechanism and, a second support post disposed foremost among the support posts of the second support post group extends from a low position to a position higher than the transverse sealing mechanism, characterized in that, when viewed from above, the first support post is disposed forward of a center of the tube and the second support post is disposed rearward of the center of the tube. a film supply unit disposed in a rear portion of the apparatus and configured to supply sheet-like film; a former mechanism including a former and a tube and being disposed forward of the film supply unit, the former mechanism configured to form in a tubular shape the sheet-like film supplied from the film supply unit, a transverse sealing mechanism configured to transversely seal the tubular film in which a product being supplied from above; and plural upright support posts that configure a frame that surrounds at least part of each of the film supply unit, the former mechanism, and the transverse sealing mechanism, wherein the plural support posts include: a first support post group including a plurality of the support posts disposed on one lateral side of the bagmaking and packaging apparatus in a left and right direction; and a second support post group including a plurality of the support posts disposed on the other lateral side in the left and right direction, a first support post group including a plurality of the support posts disposed on one lateral side of the bagmaking and packaging apparatus in a left and right direction; and a second support post group including a plurality of the support posts disposed on the other lateral side in the left and right direction, a first support post disposed foremost among the support posts of the first support post group extends from a low position to a position higher than the transverse sealing mechanism and, a second support post disposed foremost among the support posts of the second support post group extends from a low position to a position higher than the transverse sealing mechanism, characterized in that, when viewed from above, the first support post is disposed forward of a center of the tube and the second support post is disposed rearward of the center of the tube.