Traffic cone collecting and placing vehicle, traffic cone collecting and placing system and method

The invention discloses a traffic cone collecting and placing vehicle, a traffic cone collecting and placing system and method in the technical field of road traffic. A cargo carrying part used for containing traffic cones is arranged behind the traffic cone collecting and placing vehicle. Side collecting and placing devices are arranged on the two sides, close to the truck head, of the cargo carrying part. A pretreatment device for assisting in collecting the traffic cones is arranged on the side collecting and placing device; the rear end of the cargo loading part is provided with a rear putting device and a back shifting device; the back shifting device transversely shifts the traffic cones thrown by the rear throwing device; the back shifting device adopts a rotary conveyor belt structure, and a rotary conveyor belt is provided with radial shifting strips. The rear putting device and the back shifting device are arranged at the rear end of the cargo carrying part, the traffic cones are pulled back through