The soft packaging liquid filling machine is specifically designed for quantitative filling of liquid raw materials in soft packaging (plastic bags, etc.), with a quantitative range of 10L to -50 L. The filling process is carried out under vacuum, including removing the lid, vacuuming the packaging, filling, and capping, while the filling nozzle is suctioned back (ensuring that there are no residual oil droplets on the packaging). The entire process is automatically completed. The main pneumatic and electrical components are all imported accessories to ensure system stability and excellent quality. The entire pipeline is composed of stainless steel, food grade high-pressure nitrile rubber, and stainless steel turbine flowmeter, and is controlled by Omron PLC and related accessories. The packaging is supported by the bracket on the oil nozzle. It can be widely used in industries such as edible oil, alcohol, beverages, lubricants, and chemicals.