As the climate warms, the Arctic ice cap is melting at a faster rate, and the sea lanes are becoming more valuable. According to China's seventh scientific observation space distribution of the arctic sea ice, simulate the real distribution of broken ice, using ls-dyna software method of fluid-structure interaction, studied the different size broken ice, ice thickness, broken ice field intensity and the speed of ships sailing on the ship hull structure in the collision response, the influence of the hull structure damage stress, energy absorption, and the collision force and structure response law and mechanical properties.