Fabrication method of patterned flexible electrode

Provided is a method of producing a patterned flexible electrode including: a nanowire formation step of applying a first dispersion containing a metal nanowire to a first sheet which is unwound from a wound state to form a nanowire network; a fiber formation step of electrospinning a second dispersion containing metal nanoparticles on the nanowire network to form a fiber-nanowire network in which a metallic fiber of the metal nanoparticles being agglomerated is incorporated into the nanowire network; a sintering step of photonically sintering the fiber-nanowire network to form a conductive network; and a patterning step of patterning the fiber-nanowire network before the sintering step or patterning the conductive network after the sintering step.