Abstract：The dynamic model of the metal plate spring vibration isolator system was built up. The friction curve was calculated using finite element method. Through the analysis of dynamic equation, the responses of the system under different harmonic exciting forces, as well as the impact of acceleration response were studied .The results indicate: When electronic cabinet loaded on the isolator, the system maximum acceleration reduces by 72%. The metal plate spring vibration isolator has good vibration damping and impact resistance performance. This study will provide a theoretical basis of optimal designing for the dry friction absorber.