Enamelled aluminium wire

The utility model discloses an enamelled aluminium wire which is reasonable in structure, not only good in welding performance and light in weight, but also improved in electrical performance, and coils with the same size have better load capacity. The enamelled aluminium wire comprises an aluminium wire main body. The center of the aluminium wire main body is provided with a layer of inner copper layer. The outer wall surface of the aluminium wire main body is provided with a layer of outer copper layer and/or silver layer. The outer wall surface of the outer copper layer is provided with a polyamide-imide or polyamide-imine insulation varnish layer. The cross section of the aluminium wire main body is in the shape of a circle or a rectangle; and the cross section of the inner copper layer arranged in the center of the aluminium wire main body is in corresponding circular or rectangular shape.