<p>Disclosed is a thin film solar cell manufacturing method provided with an adhesion step wherein a bus bar is adhered to the backside electrode layer of a solar cell string comprised of a transparent electroconductive film, a photovoltaic conversion layer, and the backside electrode layer which are formed on a translucent insulation substrate. The adhesion step includes a first step wherein an electroconductive tape is adhered to the adhesion face of the bus bar which is to be adhered to the backside electrode layer, and a second step wherein the bus bar to which the electroconductive tape has been adhered is adhered onto the backside electrode layer of the solar cell string.</p>
