At present,in the special design of bridge ship collision protection or ship collision force research,more attention is paid to ship collision force research and bridge response under ship collision,but less research on the maximum deformation of the hull.Based on ANSYSLS-DYNA software,we simulate multiple ship collision conditions composed of four pier types,four types of different load mass inland river representing ship,three speeds and two collision angles.We extract the maximum deformation of the ship for each working condition,analyze its correlation with the ship load tonnage,impact speeds,pier types and impact angles,and compare it with empirical formula.The results show that impact velocity and impact angle are the main controlling factors,there is no obvious relationship with pier type.