By using the self-programmed Vehicle-Structure Dynamic Analysis Program(VSDAP), starting from vibration response, and taking into consideration transfer characteristics of the short floating slab, the influence of physical parameters  of the short floating slab board track structure on the whole system was studied, including the vibration of vehicle structure, track structure and basic structure. The results show that an additional value can be obtained by a given recommended interval as two set of mass ratio coefficient, damping ratio and stiffness ratio remain unchanged. With the increase of stiffness coefficient,  the maximum of  resonance transfer rate decreases but the cutoff frequency increases; the maximum of  vibration acceleration of the vehicle decreases, while the vibration amplitude of the floating slab decreases, but the bridge vibration intensifies. As the damping ratio increases, the resonance and its maximum transfer rate dropping speed become slower. When the damping ratio reaches a certain value, the effect on vibration isolation almost disappears.