目的 探索木质素碳量子点(CQDs)荧光油墨及其书写式标签、CQDs/聚乙烯醇(PVA)复合荧光薄膜在防伪包装中的应用潜力。方法 以木质素为碳源，采用一锅水热法得到未掺杂碳量子点O-CQDs和硫掺杂碳量子点S-CQDs，并以此为荧光填料，以乙醇、乙二醇和丙三醇的混合液为溶剂，制备荧光油墨及其书写式荧光标签和CQDs/PVA复合荧光薄膜，探索其荧光防伪性能。结果 硫掺杂木质素碳量子点油墨MS-CQDs及其书写标签、PVA复合薄膜在可见光下均无色，在365 nm紫外光照下则呈现强烈的淡蓝色荧光。结论 MS-CQDs书写式称量纸荧光标签及其与PVA的复合薄膜均具有良好的荧光性能，在荧光防伪领域具有良好的应用潜力。

The work aims to explore the application potential of lignin carbon quantum dots (CQDs) fluorescent ink and its writing label, and CQDs/polyvinyl alcohol (PVA) composite fluorescent films in anti-counterfeiting packaging. With lignin as the carbon source, undoped carbon quantum dots O-CQDs and sulfur-doped carbon quantum dots S-CQDs were obtained by the one-pot hydrothermal method. Fluorescent ink, and its writing fluorescent labels, and CQDs/PVA composite fluorescent films were prepared, and their fluorescence anti-counterfeiting performance was explored. The sulfur-doped lignin-carbon quantum dots ink MS-CQDs, their writing labels, and PVA composite films were colorless under visible light and showed bright blue fluorescence under 365 nm ultraviolet light. In conclusion, MS-CQDs writing weighing paper fluorescent labels and their composite films with PVA have good fluorescence performance and have good application potential in fluorescence anti-counterfeiting.