The invention discloses a production technology of a die-casting zinc alloy zipper. Two chain belts enter a mould cavity in parallel under the driving of the drawstring device of a die-casting shaping machine; meanwhile, two static wires between two chain belts enter the mould cavity along two lines parallel to the chain belts under the action of the drawstring device; a chain tooth segment provided with the static wires is formed by die assembly, press-shoot, cooling and shaping; after the chain tooth segment is performed die sinking and ejection, the drawstring device quickly drives the chain belt and the static wires to cause subsequently chain and the static wires which are to be performed the die-casting to enter the mould cavity so as to carry out next mould die casting. The cycle is carried out to form a row of chain teeth; after electroplating, a spiral blade is used for cutting the static wires between teeth; and a zipper is assembled by ironing belts. The invention adopts the whole die-casting scheme of the chain teeth and the static wires so as to save the original static wire weaving technology; in addition, after electroplating, the spiral blade is used for cutting the static wires between teeth, thus the product has the advantages of good appearance, flexibility and conduction performance, small color difference after electroplating and firm and even surface coating.