The utility model relates to a connecting piece that is used for unmanned aerial vehicle screw mounting panel and fuselage, it includes at least a set of buckle mechanism, this buckle mechanism included the buckle base preassembleed in the wing shell, with buckle base matched with rotary pawl, the rotary pawl passes through the rotation axis to be installed on the mounting panel, and the mountingpanel is installed on screw mounting panel support, the rotary pawl other end still is equipped with the spring, and the both ends of spring are fixed respectively on screw mounting panel support androtary pawl, and the rotary pawl uses the rotation axis to swing as the center. The utility model discloses relative prior art has simple structure, convenient operation is swift, structural design isreasonable, has realized unmanned aerial vehicle quick assembly disassembly's purpose, has reduced unmanned aerial vehicle's maintenance cost and storage space, has higher spreading value.