Method for separating windings of electric motor

This method for separating windings of an electric motor is a method for separating an insulating film on an end part of a winding that is wound on a magnetic pole of a stator. This winding-separation method is characterized in that a winding end part is pulled into a tensioned state, and an insulating-film-separating device having a rotating cutting blade is moved, separating the insulating film. It is thereby possible to separate the insulating film without breaking the wire. Even if aluminum, which is weaker than copper wire or iron wire, is employed in a conductor of a winding, it will be possible to prevent breakage when the insulating film is being separated.