<p>A soldering apparatus for soldering electronic elements without lead wires to a printed circuit board in which two first solder waves and a second solder wave are discharged from a first nozzle and a second nozzle in a first tank and a second tank provided independently of each other, respectively and the printed circuit board is conveyed so that a lower surface of the printed circuit board may be sequentially brought into contact with the first solder waves and second solder wave.</p>
