We investigated the optical properties of the hexagonal/ triangle gold nanoplates by single particle spectroscopy. By comparison with scanning electron microscope (SEM) observations, we successfully demonstrated that light scattering spectra of the hexagonal nanoplates with 360 120-nm edge lengths and the triangular ones of 190 60nm exhibited two peaks in visible-near infrared region corresponding to quadrupole and higher multipole modes of localized surface plasmon resonance (LSPR).