Taking the 32 m ballastless track box girder structure commonly used in Beijing-Shanghai high-speed railway as the prototype，a model test is conducted. The model is a track-box girder structure. According to the geometric similarity ratio of 1/10，the design and fabrication process of each structure of the test model are introduced，the load excitation is applied by the exciter.The results show that the vibration of the track plate attenuates slowly in the frequency range of 500?1024 Hz，and the vibration of the base plate and the top plate attenuates rapidly in the frequency range of 0?1024 Hz. The vibration attenuation is the least in the process of transmission from the top plate to the flange plate，followed by the web，and the vibration attenuation is the greatest in the process of transmission from the top plate to the bottom plate. The vibration of the web and the bottom plate attenuates most rapidly in the middle and high frequency bands in the frequency range of 0?1024 Hz. In the frequency range of 0?1024 Hz，the vibration of the track plate reduces slightly along the longitudinal direction. In the 670?1024 Hz frequency band，the vibration of the base plate attenuates greatly from the middle to the quarter section，and the attenuation of vibration is small from the quarter to the end section. In the frequency range of 700?1024 Hz，the vibration of the flange plate attenuates greatly from the middle to the quarter，and the attenuation of vibration is small from the quarter to the end section. The stiffness value of the bearing has a certain but small influence on the vibration of each measuring point of the mid-section of the structure，but the influence is small. The stiffness value of the bearing has a certain influence on the vibration isolation，and the specific influence is related to the analysis of the frequency band.