Electric winch is mainly used for off-road vehicles, agricultural vehicles, ATV sport car, yachts and other special vehicles. It is a self-protection and traction device for vehicles and ships. It can be used in snow, swamps, deserts, beaches, in harsh environments such as muddy mountain roads, self-rescue and mutual rescue of vehicles may be carried out, and under other conditions, activities such as clearing obstacles, dragging articles, and installing facilities may be carried out, such as water, oil, water, environmental protection, an indispensable safety device for Lin Lai, transportation, public security, border defense and other outdoor sports.