An insulated wire, having: a single conductor or multiple conductors; an insulating layer on the outer periphery of the single conductor or each of the multiple conductors; and an adhesion layer on the outer periphery of the insulating layer, wherein the thickness of the adhesion layer is 2 to 200 μm, wherein a resin constituting the adhesion layer does not have a melting point, wherein the resin constituting the adhesion layer has a tensile modulus of 0.6×107 to 10×107 Pa at 250° C., and wherein a substance having 2 or more amino groups exists on the surface of the adhesion layer; a coil containing the insulated wire; and an electrical or electronic equipment using the coil.