A filling apparatus comprising: a straight conveyor line configured to intermittently convey spout-equipped bags , which are suspended so that spouts protruding from one side of the spout-equipped bags are located on an upper side and the bags are located on a lower side, wherein the bags are flat before being filled with a liquid material, wherein the conveyor line is further configured to intermittently convey the spout-equipped bags with their width direction being oriented along a movement straight line (TL) defined by the direction in which the spout-equipped bags are conveyed; a printing apparatus disposed at a position along the conveyor line and configured to print manufacturing information (BL) on the suspended spout-equipped bags ; and nozzles arranged in the middle of the conveyor line and configured to fill the suspended spout-equipped bags with a liquid material through the spouts , wherein the conveyor line is further configured to convey the spout-equipped bags so that fronts of the spout-equipped bags directly face the printing apparatus , wherein the conveyor line comprises holds and a multi-hook including a plurality of hooks , the plurality of hooks is provided at equal intervals along the movement straight line (TL), the multi-hook is configured to depart from the movement straight line (TL) after the spout-equipped bags suspended by the hooks are intermittently conveyed by a distance n times the interval, bypass the movement straight line (TL), and return to an original position along the movement straight line (TL), the n is a positive integer, and the holds are respectively arranged at positions in which the intermittently conveyed spout-equipped bags stop, and are configured to obtain the spout-equipped bags from the multi-hook holding the stopping spout-equipped bags prior to the multi-hook departing from the movement straight line (TL). a straight conveyor line configured to intermittently convey spout-equipped bags , which are suspended so that spouts protruding from one side of the spout-equipped bags are located on an upper side and the bags are located on a lower side, wherein the bags are flat before being filled with a liquid material, wherein the conveyor line is further configured to intermittently convey the spout-equipped bags with their width direction being oriented along a movement straight line (TL) defined by the direction in which the spout-equipped bags are conveyed; a printing apparatus disposed at a position along the conveyor line and configured to print manufacturing information (BL) on the suspended spout-equipped bags ; and nozzles arranged in the middle of the conveyor line and configured to fill the suspended spout-equipped bags with a liquid material through the spouts , wherein the conveyor line is further configured to convey the spout-equipped bags so that fronts of the spout-equipped bags directly face the printing apparatus , wherein the conveyor line comprises holds and a multi-hook including a plurality of hooks , the plurality of hooks is provided at equal intervals along the movement straight line (TL), the multi-hook is configured to depart from the movement straight line (TL) after the spout-equipped bags suspended by the hooks are intermittently conveyed by a distance n times the interval, bypass the movement straight line (TL), and return to an original position along the movement straight line (TL), the n is a positive integer, and the holds are respectively arranged at positions in which the intermittently conveyed spout-equipped bags stop, and are configured to obtain the spout-equipped bags from the multi-hook holding the stopping spout-equipped bags prior to the multi-hook departing from the movement straight line (TL). <EOS>