The invention relates to an anti-pulling device for a cable, and discloses an anti-pulling structure which spirally winds the cable on a retractable supporting rod so as to cooperate for contraction when the cable is pulled and carries out buffering by using a spring to avoid abrasion of the cable. The anti-pulling device is characterized in that one end of a fixing column is vertically arranged in the center of a main fixing plate, the other end of the fixing column is vertically arranged in the center of an auxiliary fixing plate, a plurality of sliding grooves are formed in the main fixingplate at equal angles, a plurality of sliding grooves are formed in the auxiliary fixing plate at equal angles, the sliding grooves in the auxiliary fixing plate correspond to the sliding grooves in the main fixing plate in a one-to-one mode, the sliding grooves are T-shaped grooves, multiple supporting rods are arranged between the main fixing plate and the auxiliary fixing plate and are annularly distributed at equal angles, two ends of each supporting rod are respectively provided with connecting sleeves, sliding blocks are fixedly arranged on the connecting sleeves, and the sliding blocksat one ends of the multiple supporting rods are arranged in the multiple sliding grooves in the main fixing plate in a one-to-one correspondence mode.