The utility model relates to a fixed wing uavs with sprinkling system, sprinkling system include container, pump, spray tube and shower nozzle, and the shower nozzle passes through the spray tube to be connected with the pump, and the pump passes through the spray tube and is connected with the container: the plane of symmetry symmetric distribution of wing is followed to the container to the setting is in unmanned aerial vehicle focus department, the shower nozzle distributes along the wing span, and connection nozzle locates the wing lower part with the spray tube of pump, the spray tube is including controlling two sections overhanging spray tubes, and overhanging spray tube is outside the extension along span direction from the wingtip. The utility model discloses an advantage embodies: the agricultural is used, this fixed wing uavs can use spray with disease and pest control at the pesticide first -class, the utility model discloses an add the overhanging spray tube of establishing, can extend and spray the area, improved spraying performance, realize the high efficiency and spray.