▎ 摘　　要

NOVELTY - Preparation of carbon-based multi-functional high-performance composite sodium alginate composite fiber comprises mixing sodium alginate and water for 0.5-5 hours, stirring at 35-60 degrees C for 2-5 hours, adding graphene oxide, ultrasonic treating for 0.5-5 hours, adding carbon nanotube, ultrasonic treating for 0.5-5 hours, vacuum drying for 6-24 hours, defoaming, spinning, coagulating, heating, spinning, drafting, and shaping. USE - Method for preparing carbon-based multi-functional high-performance composite sodium alginate composite fiber. ADVANTAGE - The fiber has increased tensile strength, electrical conductivity, heavy metal absorptivity and anti-degrading property.