To provide a filling machine provided with a seal tape bobbin capable of reducing environmental load and contributing to satisfactory longitudinal seal and a device therefor.

This filling machine for packaging liquid food is constituted in such a way that a tubelike packaging material which is formed like a tube from a packaging material web and is longitudinally sealed in the direction of longitudinal line by a seal tape and in which liquid food is filled in the tube is laterally sealed in the direction of crossing and is cut to the dimension of one portion to form into a final shape. The filling machine has a bobbin storing the seal tape, the seal bobbin reels out the seal tape as required, and the seal bobbin is composed of two fins having mechanical strength, made of substantially paper, and joined with an axis part and both ends of the axis part.