Abstract: A three-dimensional dynamic finite element model of the heat pipe is established in the context of the tunnel blasting of the Beijing Winter Olympics branch line interval that passes under the heat tunnel. The reliability of the numerical model is verified by the hammering test, and on this basis, the measured blast vibration wave is input to study the dynamic response law of the pipe rack-type thermal pipeline subjected to the blast seismic wave. The results show that: when the actual blasting vibration acts on the pipeline, the maximum Mises stress of the pipeline structure is 45.82 MPa, and the maximum effective strain is only 0.02%, which is consistent with the distribution of structural stress and strain when there is only the initial action of gravity, which indicates that the blast actual vibration on the pipeline structure is relatively small; amplifying the input blasting vibration by a factor of 5−100, the PPV of the pipeline structure increases proportionally, and the increases of the maximum Mises stress and the effective strain is only about 4.5%. The low-frequency component of the seismic wave is extracted from the measured seismic wave and applied to the pipeline structure. However, the low-frequency vibration does not cause the resonance response of the thermal pipeline's stress and strain, and the Mises stresses of the pipeline material are all below 50MPa, It can be seen that the peak and main frequency of seismic waves have little influence on the stress-strain distribution of the pipeline. The overhead pipeline structure with bellows expansion joint has uniform force, good deformation coordination and seismic performance, and is less likely to be damaged by engineering blasting vibration.