Polypropylene port for plastic infusion container (also known as soft bag port) is a necessary part for the production of plastic infusion bag. The plastic infusion bag is filled with liquid medicine and sealed with a polypropylene cap after the multi-layer co-extrusion film and the polypropylene port are heat-sealed. At present, the ship-shaped polypropylene port is widely used, and the imported polypropylene material is used for injection molding with a hot runner mold in a clean workshop with an overall grade of 10,000 and the local grade of 100.