One electronic equipment undergoes acceleration up to 38 g in flight vibration environment. To reduce the vibration response of the equipment, a new type of combined rubber damper is developed through FEM analysis and test verification. The results show that the random vibration response of the equipment decreases from 38 g to 11 g by using this damper, indicating a vibration reduction efficiency of 71%, and moreover the resonance amplification factor is less than 3.