The invention discloses a fixed-point and quantitative type agricultural spraying unmanned aerial vehicle which comprises an unmanned aerial vehicle body. The unmanned aerial vehicle body is internally provided with an equipment room and a pesticide room, a motor is fixedly connected to the inner bottom wall of the equipment room, a rotating shaft is fixedly connected to the output end of the motor, the top end of the rotating shaft penetrates through the unmanned aerial vehicle body and fixedly connected with the bottom of a propeller body, and a support frame is fixedly connected to the bottom of the unmanned aerial vehicle body. By means of the fixed-point and quantitative type agricultural spraying unmanned aerial vehicle, effective control and moving can be conducted on the spraying unmanned aerial vehicle, the spraying dosage can be effectively controlled, corresponding spraying can be conducted according to the actual condition of the crops, the spraying dosage and the spraying area can be effectively controlled, the fixed-point and quantitative performance is high, the spraying area can be recorded reasonably, multiple spraying of the spraying area is effectively avoided, waste of resources is effectively avoided, normal growth of the crops is effectively guaranteed, and the spraying effect is good.