We report on a simple yet practicable method for creation of transparent and electrically conductive films by using ultra-long single-walled carbon nanotubes as the functioning elements.The ultra-long single-walled carbon nanotubes were ultimately dispersed into tubular levels for dispersion(denoted as mono-dispersion)in aqueous solutions by using glycocholate mixed with cholate as the dispersant.The resulting colloids containing the mono-dispersed ultra-long single-walled carbon nanotubes were then uniformly cast over the surface of flexible polyethylene terephthalate film through a wire-bar coating process.The film coated with the carbon nanotubes was placed under 120℃ to dry and was then washed with deionized water and then diluted nitric acid.