Abstract: The viscoelastic damping material is used to provide vibration/ shock protection and control of the rubber isolator. Traditionally, trial and error design are carried out by a large number of empirical formulas and test data, which is characterized by low efficiency and high cost. Aiming at the static and dynamic characteristics analysis problem of the rubber isolators in electronic equipment, a nonlinear finite element method is proposed to solve the problem. By taking a rubber isolator as an example, the static characteristics such as static stiffness, creep and relaxation properties and the dynamic characteristics such as hysteresis loop, harmonic response and impact response are obtained. And the two key parameters ( rubber hyperelasticity and matching mass) in the design and selection of the rubber isolator are discussed, which can provide reference for the design method study of the rubber isolator.