Tunable characteristics of the localized surface plasmon resonance (LSPR) peak of gold nanoshells are investigated numerically with Mie theory. The results show that, for a nanoshell with fixed inner radius, the LSPR peak of gold nanoshell may be controlled by changing the thickness of the shell to adjust the strength of the hybridization effect which makes the LSPR peak red-shift. As the ratio of the nanoshell thickness to the nanoshell inner radius decreases, the absorption component in whole extinction spectra for nanoshells with different inner radii all increases. In addition, when the hybridization effect is used to adjust the LSPR dipole peak position, the available maximum wavelength scope is determined by the nanoshell inner radius. The larger the inner radius is, the wider the available maximum wavelength scope is.