▎ 摘　　要

NOVELTY - Preparation of fluorescent anti-counterfeiting coating comprises drying and pulverizing leather waste to obtain pulverized leather shavings, uniformly dispersing in ultrapure water, subjecting to hydrothermal reaction, suction filtering to obtain an aqueous graphene quantum dot dispersion, compounding with a thickener, and printing anti-counterfeiting two-dimensional code on a substrate. USE - The method is used for preparing fluorescent anti-counterfeiting coating. ADVANTAGE - The method is simple, convenient, green, and capable of mass production, solves the problem of graphene quantum dot preparation process and purifying complex, and can realize the preparation of anti-fake coating at a lower concentration.