Fecha de publicación: 24/05/2022 Fuente: WIPO "tobacco agriculture" The utility model relates to an insecticidal spraying device for tobacco agricultural planting protection, which comprises a bottom plate, the upper surface of the bottom plate is fixedly connected with a box body, the upper surface of the box body fixedly communicates with a water inlet pipe, the right side surface of the bottom plate is fixedly connected with a storage battery, and the left side surface of the box body fixedly communicates with a telescopic pipe. The output end of the telescopic pipe fixedly communicates with a connecting pipe, the two output ends of the connecting pipe fixedly communicate with spray heads, and the upper surface of the bottom plate is fixedly connected with a threaded pipe. Through cooperation of a threaded pipe and a threaded rod, the threaded rod can move up and down, a supporting rod can be controlled to move through the threaded rod, the height of a spray head can be adjusted through a connecting pipe, and a worker can push the device to move in cooperation with a push plate and rolling wheels; therefore, the problem that the labor intensity of workers is high when the workers work due to the fact that the workers need to lift the nozzle for a long time when the tobacco is high is solved.