The invention relates to the technical field of unmanned aerial vehicle spraying, in particular to an unmanned aerial vehicle spraying device for
pesticide spraying, which comprises an unmanned aerial vehicle body, a mounting cavity arranged on the unmanned aerial vehicle body and a
pesticide box fixedly mounted at the mounting cavity, the
pesticide box comprises an upper pesticide
barrel and a lower pesticide
barrel, the upper pesticide
barrel is arranged to penetrate through the mounting cavity, and the lower pesticide barrel is arranged to penetrate through the mounting cavity; the lower pesticide barrel is mounted at the bottom of the upper pesticide barrel, and a through hole is formed between the top of the lower pesticide barrel and the bottom of the upper pesticide barrel; a liquid guide
pipe penetrates through the through hole, a liquid guide mechanism is arranged in the liquid guide
pipe, and the liquid guide
pipe guides liquid
medicine in the
medicine discharging barrel to the
medicine feeding barrel through the liquid guide mechanism; according to the unmanned aerial vehicle spraying device for pesticide spraying, when pesticide is prepared, a secondary
dilution method can be directly adopted between the upper pesticide barrel and the lower pesticide barrel, so that pesticide liquid is prepared more evenly,
precipitation is not likely to be generated, and by means of the secondary
dilution method, sufficient
dissolution and even distribution of the pesticide can be facilitated; therefore, the possibility of
precipitation and blockage is effectively reduced.