Abstract: Modern special vehicles run usually in complex condition with bumpy road and bad environment. Due to the effect of ride comfort problem on body and mind state of the drivers, the study on vibration reduction and noise reduction of the special vehicle have been paid attention. To solve the problems existing in the study, including the variety of special vehicle, a long research time, high cost for single special car and low efficiency, a modular design method was proposed to design module material, thickness, size,assembly scheme and the matching relationship between car body, engine and support for the special vehicle. Taking special vehicle as study objective, a series of schemes was formed based on the modular design method for the vibration reduction and noise reduction to realize the modularization and generalization of different vehicle with lower design and processing costs. Simulation and road test results show the effect of vibration and noise reduction and the effectiveness of the modular design method. The method proposed in this paper can provide a useful reference for the vibration reduction and noise reduction measures of special vehicles.