▎ 摘　　要

NOVELTY - Preparation of Chinese medicine composite antiviral multifunctional degradable polylactic acid fiber involves fermenting and extracting starch fermentation raw material to obtain lactic acid, then dehydrating and condensing at 100-170 degrees C under reduced pressure, obtaining lactic acid prepolymer, adding the lactic acid prepolymer, functional nanoparticles and a catalyst to an extruder, mixing, polycondensing, and spinning obtained functional polylactic acid. USE - Preparation of Chinese medicine composite antiviral multifunctional degradable polylactic acid fiber (claimed). ADVANTAGE - The method enables preparation of environmentally-friendly Chinese medicine composite antiviral multifunctional degradable polylactic acid fiber with high stability, excellent antibacterial property, degradability and recyclability, with reduced energy consumption, by simple process.