Abstract: A computational fluid dynamics method was used to analyze the flow field of a single helical coil, and the results were applied to the flow induced vibration evaluation of the coil. Finite element software Ansys Workbench was used to analyze the modal and vibration mode of the coil, and the flow induced vibration characteristics of the high-pressure cooler were evaluated according to the natural frequency, operating parameters and evaluation criteria of the coil tube bundle. Results show that the natural frequency and vibration amplitude of the coil type high pressure cooler bundle are within the safe range, which can avoid the vibration caused by the vortex shedding.The lateral flow velocity of the coil type heat exchange tube is less than the critical flow velocity of fluid elastic instability, and the fluid elastic instability will not occur. The frequency and peak amplitude of turbulent buffeting are far less than the limit value, which will not cause equipment failure.