The fully automatic numerical control flow meter quantitative filling machine is suitable for filling different shapes, capacities and different materials (plastic cans, iron cans) of packaging containers. It is particularly suitable for quantitative filling of liquids with good fluidity. The filling head and flow meter are made of 316L stainless steel, which can accommodate various corrosive, low-viscosity and non-particle liquids. This machine is of an intake type structure and has functions such as anti-dripping, anti-splashing and anti-tearing. It meets the filling needs of different sizes and types of bottles for customers. This machine can be used for regular round bottles, square bottles and flat bottles.