Tug boats are ships used to tow barges and ships. The characteristics of the tug boat are firm structure, good stability, small hull, high main engine power, large traction, and good maneuverability, but it has no loading and unloading capacity. Tug boat mainly tows barges carrying materials and various operational vessels. According to the different areas of use, tug boats can be divided into ocean-going tugs, inland tugs, coastal tugs, port tugs, marine rescue tugs, and other types. Today I will introduce the tug boat in detail.