A method for soldering a soft wire to a printed circuit board conveniently includes the following step: providing a bracket having a through hole and an enameled wire; fastening the enameled wire to the bracket with the conductive wire crossing over the through hole; providing a printed circuit board formed with conductive pads thereon and setting the printed circuit board onto the bracket with the pad aligned to the through hole so that a portion of the magnet wire crossing the through hole lies on the conductive pad; providing a soldering tool having a thermal contact portion and inserting the thermal contact portion into the through hole to solder the magnet wire to the conductive pad.