We reported Ag deposition-based electrochromic cell (ECD) which showed reversible color change from transparent to chromatic color, black and silver-mirror in a single device. This coloration is based on the absorption by localized surface plasmon resonance (LSPR) enhanced by the silver nano deposit. In this paper, we review a relationship between optical properties, deposition process and morphology of silver nanoparticles toward color reflective display.