▎ 摘　　要

NOVELTY - Preparing flexible conductive film, comprises (1) preparing conductive ink, dispersing graphene in first solvent, where the boiling point of the first solvent is higher than 150degrees Celsius, performing heating and ultrasonic stirring, heating dispersed solution to more than the boiling point of the first solvent, adding second solvent to solution, where the boiling point of the second solvent is lower than 150degrees Celsius, centrifuging and separating remaining solution, and ultrasonically stirring to obtain graphene conductive ink; (2) applying conductive ink on the flexible transparent substrate by using inkjet printing electronic technology; and (3) transversely or longitudinally stretching the substrate to obtain film-shaped flexible conductive film, and drying the conductive film. USE - The method is useful for preparing flexible conductive film. ADVANTAGE - The conductive ink exhibits moderate viscosity without blocking the nozzle, exhibits moderate angle between the substrate and contact plate, exhibits good wettability, and good for coating ink on the substrate.