The invention discloses a zinc-coated wire wiping agent. At present, most of manufacturers adopt oil charcoal to wipe zinc-coated steel wires so as to control the zinc coating weight and the surface finishment of the steel wires, and since the oil charcoal can be agglomeration due to easily generated clingage, shell blocks need to be removed frequently and fresh oil charcoal needs to be replenished, thereby increasing the production cost; and oil can generate a large quantity of lampblack at high temperature, thereby influencing the workshop environment. The invention provides the zinc-coated wire wiping agent which has the advantages of saved cost, safety and no pollution; and the steel wires wiped by the wiping agent are cleaner and brighter. The invention is realized by the following technical scheme: evenly mixing 30 parts of charcoal powder by weight and 8-12 parts of water by weight. By adopting the wiping agent of the invention, the energy sources are saved, and the production cost is greatly reduced; part of water can evaporate into water vapor at high temperature, thereby having no pollution to the workshop environment; and the finished products are cleaner and brighter.