Pesticide application device with switch

The utility model discloses a pesticide applying device with a switch. The pesticide applying device with the switch comprises a pesticide containing bottle and a bottle cap. A bottle opening is formed in the lower portion of the medicine containing bottle. The bottle cap is connected to the bottle opening. The bottle cap comprises an inner blocking piece and an outer screw cap. The inner blockingpiece is a circular plate matched with the bottle opening, and the inner blocking piece is fixedly connected with the bottle opening in the direction of the central axis of the inner blocking piece.The inner blocking piece further comprises a medicine outlet hole. The medicine outlet holes penetrate through the upper surface and the lower surface of the inner blocking piece. The outer screw capis rotatably connected with the bottle opening, the inner wall of the outer screw cap is tightly attached to the outer wall of the inner blocking piece, a rotating opening with the upper surface and the lower surface communicat