Based on the physical model experiment, we carry out a research on the ship’s mooring force and ship movements under various circumstance loads, such as wave, wind and current, analyze the mooring force, movement and energy variation law under different mooring angles and mooring lines’ arrangements, and determine reasonable berth length to serve as reference for the engineering design. The research result shows that the most reasonable berth length is 1.08 to 1.2 times of ship length, the mooring force’s distribution is most uniform, and ship motion and impact energy are most reasonable.