This study presents a roll-to-roll process which is capable of Ag nanowire (AgNW) transfer frompolyethylene terephthalate (PET) film to polycarbonate (PC) film. We developed a roll-to-roll machinethat consists of two film suppliers, a coater of photo-curable resin, a film laminator, an ultraviolet(UV) exposure unit, and a film winder to facilitate large-area electrode transfer between differentflexible substates. Using the process, optimal fabrication condition was investigated by parametricexperiments in terms of the UV exposure time, number of thermal cycling, and exposure time of hightemperature and humidity. A fabricated AgNW on PC film showed sheet resistance of 52 Ω/sq andoptical transmittance of approximately 80 % over a range of visible light.