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Based on the ice characteristics of the Bohai Sea, the advances in the researches on sea ice numerical models are reviewed from the two aspects: thermodynamic and dynamic. The new generation sea ice thermodynamic models for the Bohai sea are discussed from the thermodynamic parameter schemes and climate characteristics. The SPH (Smoothed Particle Hydrodynamics) method is introduced for ice short term prediction of the Bohai sea, and the main characteristics and practical application of three common numerical methods in dynamic sea ice model development are described. Whereby, combined with the development of marine meteorology, the key technology of short term ice forecasts is discussed. It is pointed that an operational sea ice forecast system with numerical and statistical techniques would be the future direction of sea ice model development.