Modified plastic processing system and method

The embodiment of the invention provides a modified plastic processing system and method. The system comprises a material taking device, a processing bin, a mixed heating and pressurizing device, a cooling forming device, an extrusion device, a cutting device, a produced material receiving barrel and a processor. The processor is used for controlling the material taking device to respectively grab raw material plastic and a processing agent and putting the raw material plastic and the processing agent into the processing bin; the mixing, heating and pressurizing device is controlled to mix the raw material plastic and the processing agent in the processing bin based on the mixing parameters, heating and pressurizing are conducted based on the heating and pressurizing parameters, a molten mixture is obtained, and the mixing parameters comprise at least one of the mixing strength and the mixing duration; in the processing bin, a cooling forming device is controlled to conduct cooling forming on the molten mixtu