Fuente: WIPO "industrial hemp" The utility model relates to the technical field of industrial hemp processing, in particular to an extraction device for extracting cannabidiol from industrial hemp. According to the utility model, electronic scale, weighing, the electronic scale transmits the information to the controller; putting the industrial hemp floral leaf raw material into a soaking box; controller controlling energization of relay B, opening a solenoid valve, a prefabricated solvent placed in the solution box flows into the soaking box from a pipeline; an electromagnetic flow sensor arranged in the pipeline monitorsthe flow in real time; when the flow of the solvent reaches the proportion of the solvent to the industrial hemp floral leaf raw material; the electromagnetic flow sensor transmits information to thecontroller; the controller controls the relay B to be powered off, after the solution and the industrial hemp floral leaf raw material are mixed, the relay A and the time relay are started at the sametime, the electric heating rod heats the mixed solution of the solution and the industrial hemp floral leaf raw material after being started, the relay A is a temperature relay, constant-temperaturecontrol over the electric heating rod can be achieved, and extraction of industrial hemp is completed.