The utility model discloses an unmanned aerial vehicle relates to from rotor unmanned vehicles technical field, including horn, fuselage, connecting piece and resilient means, the connecting piece rigid coupling is fixed on the connecting piece at the tip of horn, resilient means, set up the plug subassembly on the connecting piece, the circumference of plug subassembly sets up a plurality of buckles and a plurality of chamber of acceping, accept intracavity setting along the snap close piece that passes through the central direction activity of plug subassembly, the fuselage is provided withdetains the portion of holding with the buckle complex, the horn when rotatory rigid coupling is to the fuselage, the snap close piece straining is in the knot portion of holding, resilient means provides the elastic force of the portion of holding that detains that supports with the buckle block. The utility model discloses the only three step of needs of being connected of horn and fuselage: horn insertion machine body rotatory fuselage accomplish block and straining action, and the step that the horn was demolishd from the fuselage is opposite, the dismouting step of horn is simple convenient firm, can realize the quick assembly disassembly of horn and fuselage, has greatly improved user experience.