We have a great interest in the application of nano-brush film as the working electrode for electrochromic device. To improve the response and the life cycle of the electrochromic device, polypyrrole films were prepared on Au nano-brush electrode by template synthesis. And, their electrochemical characteristics were compared with polypyrrole film electropolymerized on Au planar electrode. It was found that the polypyrrole film on the nano-brush electrode showed a fine electrochemical stability.