This paper proposes a methodology to adjust an excitation force amplitude generated by laser-induced plasma shock wave. To realize a remote sensing technique, we investigate a non-contact method to vibrate target mechanical structures or infrastructures to be inspected using laser ablation or laser-induced plasma shock wave. Laser ablation damages an excitation point of the structures because the laser beam is irradiated to the point. Laser-induced plasma shock wave is completely non-destructive method, but the amplitude of the excitation force of laser-induced plasma shock wave is less than that of laser ablation. Furthermore, laser-induced plasma shock wave is spherical, and only a portion of the wave is used to vibrate the target structures. In our experiment, an acoustic lens is used to focus laser-induced plasma shock wave, allowing a control the amplitude of the excitation force of that.