The present invention is composed of an electrostatic nozzle, the injection nozzle for spraying the anti-corrosive drug to the vehicle moving in and out of the barn so that the injected drug has a '+' polarity so that the drug injected into the '-' polar vehicle is evenly sprayed Control effect can be greatly improved, and unnecessary waste can be reduced, minimizing the cost of control, and anti-static discharge nozzles installed inside the machine room allow workers and visitors to have '+' polarity. By spraying the drug having a '-' polarity workers or visitors to the drug evenly to provide a control device using an electrostatic nozzle that can greatly improve the anti-personal control effect by the injection of the drug. To this end, the present invention, the bottom injection port 11 and the side injection port 12 is installed on both sides of the barn entry path and the bottom injection port 11 and the side injection port 12 is provided in the drug supply pipe (13), a plurality of injection nozzles 20 connected to the drug supply pipe 13 for injecting drugs, and a first sensing unit configured to detect a vehicle entering the livestock house on one side of the side injection hole 12 14 and the second sensing unit 15 configured to be configured on the other side of the side injection hole 12 to detect the vehicle exiting the barn, and supply the medicine to the medicine supply pipe 13 to supply the injection nozzle 20. Is connected to the air compressor 16 and the air compressor 16 to inject the medicine at a high pressure through the medicine compressor 17 is provided to supply the medicine to the drug supply pipe 13 by the high pressure of the air compressor (16) In the control device, the injection nozzle 20, the drug The first spray (21) connected to geupgwan 13 and； Located in the front side of the first spray 21 and the first injection hole 22 is through the center so that the drug is injected through the first spray 21 to the outside through the first s
