▎ 摘　　要

NOVELTY - Preparing colored fibers with color-changing function involves: (1) preparing a certain concentration of graphene oxide (GO) aqueous dispersion at room temperature, and ultrasonically treating the GO aqueous dispersion with ultrasonic power of 800 W for 15-50 minutes; (2) centrifuging the GO aqueous dispersion at 1000-10000 rpm for 10-50 minutes after the ultrasonic treatment is completed; (3) diluting the supernatant obtained by centrifugation to a certain concentration, then placing fibers on a filter membrane, and carrying out vacuum filtration on the diluted GO aqueous dispersion to the surface of the filter membrane on which the fibers are placed; and (4) drying the fibers together with the filter membrane after the filtration is completed. USE - The method is useful for preparing colored fibers with color-changing function. ADVANTAGE - The method has simple operation process, short time consumption and low cost.