disclosed are a multilayered wound coil , a stator , and a manufacturing method therefor . the stator is provided with : a stator core comprising laminated steel sheets ; and a coil which is wound around a teeth section formed on the stator core and has a plurality of layers formed in the circumferential direction of the stator core . the winding of the coil proceeds in either the radial direction or the circumferential direction of the stator core , whichever direction has fewer adjacent conductors , and doubles back at the end in said direction . this reduces the difference in potential between adjacent conductors , making it possible to ensure insulation between adjacent conductors even with a thinner insulating film .