The invention discloses a method for preparing a CNT / IIR composite material, comprising the following steps: S100, obtaining a CNT / IIRL mixed liquid, and mixing and stirring it for standby; S200, spraying the CNT / IIRL mixed liquid to a high temperature through a gas-phase assisted spray atomizing gun On the roller of the open mill, when the water of the mixed solution on the roller evaporates, the masterbatch formed on the roller is scraped off and collected for later use; S300, add 111phr masterbatch, zinc oxide ZnO, hard Fatty acid SAD, sulfur, super-accelerator TMTD, DM accelerator, RD anti-aging agent, anti-aging agent 4020 for mixing, plasticizing and banburying of the masterbatch, and completing the preparation of GO / IIR composite materials, and atomization devices, including Assembling the frame, as well as the batching bottle, air pump and deflector set on the assembly frame, the inside of the assembly frame is provided with a micro-motion component, the micro-motion component is provided with an atomizing nozzle, and the deflector is connected to the assembly frame There is an air curtain groove at the center, the process is simple and controllable, and the principle is scientific and reasonable, which ensures uniform atomization and avoids secondary dripping due to the adhesion of water vapor.