Abstract: To better utilize by-products of Ficus carica L. and improve their economic value, antioxidant properties of Ficus carica L. polysaccharides（FCW）were investigated．Microwave-assisted extraction of FCW was carried out, and extraction process was optimized．The optimal conditions were that, extraction temperature was 70 °C, solid-liquid ratio was 1∶40, microwave power was 800 W, and extraction time was 50 min．Under these conditions, extraction rate of FCW was 12.32%．The residue was used to simulate waste after Ficus carica L. production, Ficus carica L. residue polysaccharides（FCA）was extracted using alkaline extraction method, and analyze their thermal stability．Results showed that FCA had good thermal stability below 260 °C．Polysaccharide component PFCA2 with a molecular weight of 28.188 kDa was obtained by separating and purifying it by ion exchange column and gel column．Results of monosaccharide composition showed that PFCA2 was mainly composed of rhammnose, glucose, arabinose, galactose, glucuronic acid, and galacturonic acid．In vitro antioxidant experiments showed that PFCA2 had good scavenging activities for DPPH free radicals and hydroxyl free radicals, with IC₅₀ values of 0.5041 mg/mL and 3.2802 mg/mL．This study showed that FCA have good antioxidant capacity and were natural antioxidants．This study could provide a theoretical basis for deep processing of industrial by-products of Ficus carica L.．