Oil tank of unmanned aerial vehicle

The utility model relates to the field of unmanned aerial vehicles, in particular to an oil tank of an unmanned aerial vehicle, which is mounted at the upper end of an unmanned aerial vehicle body and comprises a tank body, a concave element mounting groove is arranged in the middle of the upper end of the tank body, communicated side grooves are arranged at two ends of the element mounting groove, and the side grooves are positioned on the side surfaces of the tank body. An element installation groove is formed in the upper end of the box body, an element is installed in the element installation groove, an oil injection port located at the upper end of the box body is formed in one side of the element installation groove, and a liquid level detection pressure relief module located at the upper end of the box body is arranged on the other side of the element installation groove. An oil outlet hole is formed in the oil outlet nozzle flange; according to the fuel tank of the unmanned aerial vehicle, the volume