The electric winch is a self rescue and mutual rescue tool installed on vehicles, which is driven by electricity and powered by an electric motor. 

It drives steel cables or nylon ropes to be wound through a deceleration mechanism, achieving traction and towing of vehicles or other objects. 

It has the characteristics of high strength and high load-bearing capacity, and is suitable for various complex environments such as off-road rescue, snow rescue, and outdoor operations. 

When in use, only the power supply needs to be connected, which is easy to operate and safe and reliable, making it one of the essential emergency equipment for modern vehicles.