Functional masterbatch is a widely used additive in plastics processing designed to impart specific functional properties to plastic products. These properties include, but are not limited to, enhancing the mechanical properties of the material, improving processability, improving flame retardancy, increasing antistatic properties, imparting antimicrobial or UV protection, and so on. By efficiently mixing these functional additives with base resins to make functional masterbatch, and then mixing and processing the masterbatch with a large number of base resins, the functionalization of plastic products can be achieved at a lower cost and with a simpler process. The application of functional masterbatch greatly enriches the types and uses of plastic products and meets the diversified demands of the market.