With the dynamical interaction mechanism analyzed,the dynamical interaction equation of the vehicle/track system is established.A 1:20 small scale test model for the vehicle/track system is developed,and vibration test is conducted.The experimental results show that the dynamic performance index calculation values are generally close to the experimental values of the vehicle/track system.The resuhs reflect the vehicle/track system design andcalculation model,and validate the correctness of the calculation model and method.