The invention discloses a zinc-coated wire water-cooling circulation system. In the traditional zinc-coated wire process, water is separately used and generally discharged or partially discharged to cause the waste of a water resource. In order to overcome the defects of the prior art, the zinc-coated wire water-cooling circulation system comprises a water recovering tank (3), a water-washing pond (5) in front of a wire assistant-coating tank, a water storage pond (4), a main water pipe (1) and spray pipes (2), wherein all devices are communicated by connecting pipelines; one end of the main water pipe (1) is transversely provided with the spray pipes (2) with the same number as that of wires of a zinc outlet pot, the water outlet directions of the spray pipes (2) are crossed with the running directions of zinc-coated wires, and the water recovering tank (3) is positioned in the horizontal position of 2-10 centimeters away from water outlets of the spray pipes (2). The zinc-coated wire water-cooling circulation system carries out water washing on the wires before assistant coating by utilizing hot water after cooling the wires with better cleaning effect than that of the cooling water so that the energy sources are saved; and after the wires are washed, the water temperature is lowered so that the water is suitable for carrying out water cooling on the zinc-coated wires, thereby realizing the repeated utilization of heat.