Gold nanowires with a 2-dimensional network structure were formed by controlling the concentration of reductive reagent in the synthetic method for gold nanoparticles. Transmission electron microscopy images clearly showed the formation of a network structure of gold nanowires. Fusion of gold nanoparticles was confirmed by TEM images taken after the treatment of the water-soluble thiol compound, which could separate all gold nanomaterials to individual ones. The resistance of the dip-coated gold nanowire films was around 1 ohm/cm after removing gelatin by calcination.