▎ 摘　　要

NOVELTY - Preparing graphene composite ion exchange resin comprises passing graphene composite ion exchange resin through graphene composite copolymerized white ball, mixing and reacting with sulfonating agent at 60-150 degrees C, reducing the temperature to 30-50 degrees C and post-processing to obtain product. USE - The method is useful for graphene composite ion exchange resin. ADVANTAGE - The resin is suitable for wastewater treatment and high-purity water preparation in membraneless electrodeionization systems; has high exchange capacity than that of conventional resins; improves electrical conductivity, and the performance of membraneless electrodeionization, and reduces the regeneration voltage and energy consumption of the membraneless electrodeionization system.