The invention provides a spandex fibre dedicated abnormally-shaped multistage guide wire mechanism, mainly consisting a guide wire mechanism body, an abnormally-shaped multistage guide wire groove, and pivots of left and right ends of shafts. The mechanism provided by the invention adopts 4 intersected guide wire grooves for each corresponding packaged wire cake, wherein three grooves has the same reciprocating width, and one groove has a reciprocating width less than the reciprocating width of the three grooves by 6-12mm. By means of multiple intersected guide wire grooves and different reciprocating widths, density of the wires at two ends of the wire cake package can be reduced, and the formation of convex edges can be eliminated.