The electric trailer chassis adopts a four-wheel flat car structure, with a drawbar and steering mechanism, and has the functions of self-propelled movement and towed movement. The self-propelled speed is 0-5KM/H, which is continuously adjustable, and the passive traction speed is ≤ 15KM/H. It is equipped with brakes and remote control operation. The electric trailer chassis features easy handling, anti-skid platform surface, large bearing capacity, small running distance limitation, easy maintenance, wide use range, and convenient operation. Application: The electric trailer chassis is used to transport different goods in warehouses and production workshops. The trailer can be operated remotely and towed by a tractor, which is simple and fast