<p>Disclosed are a soldering device and soldering method whereby it is possible to can solder a tab lead to a solar battery cell in a short time without damaging the solar cell. The soldering device (100), which is used to solder a tab lead (15) to a solar cell (10), is equipped with: a preheating section (60) which, with the solar cell (10) and the tab lead (15) overlapping, heats the solar cell (10) and the tab lead (15) to a temperature not greater than the solder melting point; and a soldering section (70) which heats the overlapping section of the solar cell (10) and the tab lead (15) to a temperature above the solder melting point.</p>
