The invention relates to a metal zipper, the manufacture technology and a sealing and treating machine for the oil on the surface of the metal zipper, belonging to the technical field of daily necessities. A layer of oil is covered on the surface of the metal zipper; the oil comprises double-component epoxy resin varnish, epoxy curing agent and epoxide diluent with the weight ratio of 1:1 to 1.5:2.5 to 3.5. The metal zipper has the functions of rusting prevention, color losing resistance and anti-oxidizing discoloration with the advantages of good rigidity, friction resistance, scratch resistance and chemical corrosion resistance.