Abstract: Under the influence of factors such as seawater corrosion and the growth of marine organisms, the surface roughness of the hull will change. During the collision process, friction between the hulls will absorb some of the kinetic energy. In this paper, the Coulomb friction hypothesis is used to calculate the frictional energy dissipation during the collision. Taking the cabin section structure of a 10000 twenty-feet equivalentunit （TEU）container ship as the research object, the nonlinear finite element software Abaqus is applied to study the collision damage mechanisms of different friction factors on the hull structure. The research results indicate that, from the perspective of structure failure, the friction affects the crack propagation direction and fracture size of the inner side plate. From the perspective of energy absorption, with the increase of friction coefficient, the proportion of frictional energy dissipation in the collision process presents a trend of first increasing and then decreasing, that is, after the friction factor increases to a certain value, the proportion of frictional energy dissipation decreases.