The invention belongs to the technical field of wearable electronics, and relates to a preparation method for a thulium-tungsten-copper alloy/polyvinyl chloride fibre electronic wire. The preparation method for the electronic wire comprises the steps of washing the polyvinyl chloride fibre, performing surface modification, performing catalytic activation, and chemically plating the thulium-tungsten-copper alloy. The preparation method has the advantages that a corrosion test for simulating human body fluid for 180 days proves that the metallic ion overflow rate is less than 1ppm, namely, the material has extremely high biological environment reliability; the electric conductivity of the electronic wire is higher than that of copper and the electric conductivity achieves greater than 8*10<7>S/m; and meanwhile, the thulium-tungsten-copper alloy/polyvinyl chloride fibre electronic wire can be applied to intelligent garment, so that the electronic wire has bright application prospect and huge market potential.