Automatic cargo loading and putting system of unmanned aerial vehicle

The invention discloses an automatic loading and putting system for cargo transportation through an unmanned aerial vehicle. The system comprises a cargo packaging module, a ground auxiliary loading module and a vehicle-mounted cargo hoisting module, wherein the cargo packaging module comprises a packaging bag, a hoisting ring and a positioning bar; the ground auxiliary loading module comprises at least one power source, a man-machine interface, a communication module, a controller, a cargo lift, a driver of the cargo lift, a hoisting ring positioning clamp, a driver of the hoisting ring positioning clamp and an overall framework; the vehicle-mounted cargo hoisting module comprises at least one communication module, a controller, a rotary steering engine and a vehicle-mounted hoisting bracket. Parcels to be conveyed are put in the position to be loaded, cargos are lifted automatically through the lift, and a bolt of the unmanned aerial vehicle cargo hoisting bracket is automatically locked or separated, so that automatic loading and putting of the cargos are achieved, and the working efficiency, safety and usability of the cargo transportation through the unmanned aerial vehicle are improved with low cost.