Marine platforms in the Bohai Sea experience ice-induced vibrations under the influence of sea ice, posing a threat to their safe operation. This study examines the characteristics of ice-induced vibrations on typical marine platforms in the JZ20-2 and JZ9-3 areas of Liaodong Bay, Bohai Sea, based on field monitoring. By statistically analyzing nearly 20 years of monitoring data from various platforms, the influence of structural static stiffness, natural frequency, and sea ice conditions on marine platforms’ responses to ice-induced vibrations is revealed. The severity and attributes of ice-induced vibrations of platforms in the JZ20-2 and JZ9-3 areas are evaluated based on measured data. Results indicate that the sea ice conditions in the JZ9-3 area are more severe and complex compared to the JZ20-2 area. The natural frequency of the platform structure and the weight of the upper modules significantly affect ice-induced vibrations. The WHPE and WHPB platforms in the JZ9-3 area exhibit the most severe ice-induced vibrations, with over 15% of the days experiencing ice-induced vibration accelerations exceeding 75 gal. This study provides empirical data to support the classification and grading of Bohai Sea platforms for ice resistance, serving as a guide for designing and managing ice conditions for Chinese marine oil and gas platforms.