Based on the structure and layout of the untended JZ9-3WHPB platform, remote controllable ice induced vibration monitoring system was designed and installed on JZ9-3WHPB platform to record the vibration of the structure so as to learn its dynamic characteristics. Short time Fourier transform was employed to study the temporal variations and mode frequencies of the vibration. Vibration mode was analyzed by comparison of the phase difference between the vibrations of the upper and lower deck and applying bandpass filtering to the signal. Based on the count and analysis of the maximum amplitude and duration of the vibrations, tide and current of the water, and the structure of the platform, the defects of anti-ice induced vibration structure were analyzed, and ice resistant proposals were presented.