Agricultural unmanned aerial vehicle pesticide spraying and adding device

The utility model discloses a pesticide spraying and adding device of an agricultural unmanned aerial vehicle. The unmanned aerial vehicle comprises an unmanned aerial vehicle body and spraying dosingstructures, the liquid level sensor and the concentration sensor are electrically connected with the metering controller; when the liquid level of the liquid in the stirring box is too low; opening an electromagnetic valve and a liquid adding pump; liquid is added into the stirring box through the liquid adding pipe and the corrugated pipe; when a specified liquid level is reached; the electromagnetic valve and the liquid adding pump are closed; the medicine storage box is used for adding medicine into the stirring box through the metering controller; then, under the action of the stirring structure, the pesticide and the liquid are uniformly stirred for spraying work; working efficiency is improved, manipulation of manpower and material resources, when liquid is added into the stirring box, automatic liquid addi