The invention belongs to the technical field of filling machinery and particularly relates to a filling machine. The filling machine comprises a filling mechanism, a pressing cover mechanism, a labeling mechanism, a conveying mechanism and a power system. The filling mechanism comprises a filling bucket used for holding to-be-held objects temporarily. The pressing cover mechanism comprises a cam, a fourth shaft driving the cam to rotate, a pressing plate moving up and down along with the cam, and a sliding block used for pushing a seal device to a to-be-sealed tank opening. The labeling mechanism comprises a cylindrical cam provided with a curved groove, a sliding block arranged in the cylindrical cam groove, and a first push rod fixed to the sliding block. One end of the first push rod is fixed to the sliding block. The other end of the first push rod is provided with a label pasted to a bottle body. The conveying mechanism comprises a rotational conveying plate and a transfer plate. The power system comprises a motor providing power, a gear and a rack, and the gear and the rack transmit power to all mechanisms. The filling machine is compact in overall structure, high in precision and capable of saving labor and reducing cost, and production efficiency is improved.