Firstly, the structure of the hull is simple, the equipment on the ship is simple, especially the ferry in the river transition, the hull is light, the living equipment is very little. The secondly is a wide cabin and deck, easy to carry more passengers, more loading. thirdly is with good maneuverability, generally have two sets of power devices, with double propeller propulsion, good maneuverability, can easily dock, passengers, loading and unloading goods. Fourth, it has good stability, wide hull, stability, some ferries use catamaran type, smooth sailing. Material selection of aluminum alloy, overall weight is 2/3 lighter than steel ship, better economic performance, product return cycle is shorter, higher capital turnover rate.