In this paper, we present a single peak absorption characteristic of high performance metamaterial absorber in 150~165 THz region. The designed absorber contains two arrays: a dual metallic particles array and a dual air holes array. The damping constant of metal layer is optimized in simulations. It is found that the maximum absorption rate 96% can be obtained when using 2.3 times of damping constant in simulations. The absorption peak is excited by the localized surface plasmon (LSP) modes resonance. In order to reveal the resonant electromagnetic mechanism and research the effects of structural parameters variations on the resonant absorption peak, two sets of simulations were carried out. It was found that with increasing the vertical distance V, the absorption peak is enhanced and a new absorption band is achieved when V = 160 nm. In the second simulations, for the increase in horizontal distance H, the absorption peak is also enhanced and another new absorption band is achieved when H=190 nm. Electric field intensity distribution results show the excitation of LSP modes and the coupling effect between LSP modes lead to the absorption peak enhanced phenomenon.