Rotary wing type unmanned aerial vehicle for spraying pesticides

The invention relates to a rotary wing type unmanned aerial vehicle for spraying pesticides. The rotary wing type unmanned aerial vehicle comprises a vehicle body with a rotary wing component, wherein a plurality of pesticide boxes and a pesticide spraying device connected with the pesticide boxes are further mounted on the vehicle body; all the pesticide boxes are flatly arranged and the whole horizontal gravity center coincides with the horizontal gravity center of the vehicle body. According to the rotary wing type unmanned aerial vehicle for spraying pesticides disclosed by the invention, a large pesticide box is divided into a plurality of small pesticide boxes with the same size, so that the inertia of pesticide liquid inside a single pesticide box can be reduced, the horizontal center-of-gravity shift generated by the liquid inside each pesticide box is relatively small under the condition that the aerial vehicle suddenly stops, the overall horizontal center-of-gravity shift is greatly smaller than that under the condition that the single pesticide box is filled with the pesticide liquid, and thus the problem that flight control cannot correct out-of-control falling caused by too large horizontal center-of-gravity shift and too large dip angle of the vehicle body is avoided.