The invention discloses a wing structure of an unmanned aerial vehicle and belongs to the field of unmanned aerial vehicles. The wing structure is used for the unmanned aerial vehicle. A wing mounting seat is connected with an unmanned aerial vehicle body through fastening bolts, an auxiliary plate is mounted on a wing body and connected with an adjusting motor in the unmanned aerial vehicle body through an adjusting rod, the front end of a circular arc lower plate body in the wing body is a circular arc protrusion, the circular arc protrusion is located in an internal space formed by a circular arc front baffle, and an air passageway is reserved between the circular arc protrusion and the inner wall of the circular arc front baffle; and a gas delivering pipeline is further mounted between the circular arc front baffle and the circular arc lower plate body, one end of the gas delivering pipeline is connected with a vortex draught fan located in the unmanned aerial vehicle body, an air outlet is formed in the side, opposite to the air passageway, of the gas delivering pipeline, the purpose that better gas kinetic energy is obtained in the flying process of the row-wing unmanned aerial vehicle can be achieved through the wing structure, and flying stability of the unmanned aerial vehicle and stability of a wing are improved.