The barge itself has no self-propelled capacity and needs to be towed by tug or pusher. It is characterized by simple equipment, shallow draft and large cargo capacity. Barges are generally non-motorized ships, which form a fleet of barges with tugs or pushers. They can sail in narrow waterways and shallow waterways, and can be grouped at any time according to the requirements of cargo transportation. They are suitable for cargo transportation between inland ports. A few barges with additional propulsion devices are called motor barges. The motorized barge has certain self-propelled capacity.