The liquid packaging machine is suitable for milk, soy milk, soy sauce, vinegar, butter, and various liquids. The machine can automatically complete bag making, measuring, filling, sealing, cutting, counting, and printing the production date. Stainless steel is used for the contact part of the machine and the material. The packaging form is back seal. The metering method adopts valve plug pump filling. The packaging film is sterilized. The finished bag is beautifully packed, safe, and hygienic. The packaging material adopts heat-sealable plastic film such as polyethylene or PE.