Vertical bag making automatic packaging machine is suitable for loose, gel or liquid packaging. The principle is to transfer powder (colloid or liquid) from the feeder to the hopper above the packaging machine. The introduction speed is controlled by the photoelectric positioning device. The shaper is folded into a cylindrical shape by a longitudinal sealer, the material is automatically metered and filled into the produced bag, and the horizontal sealer intermittently pulls the bag tube downward while performing heat sealing cutting Finally, a flat bag with three sides sealed on the longitudinal seam is formed to complete the sealing of one bag. This sealing mechanism can automatically complete the packaging bag forming, measuring, printing date, filling, sealing, cutting, output and other processes on the same device and in the same vertical direction. The packaging materials used are mainly heat-sealable plastic films Kinds of composite film (such as paper-plastic composite, plastic-plastic composite, aluminum-plastic composite, etc.).