LY-866 six-rotor unmanned aerial vehicle (UAV) system, is one mini type UAV which can be quickly dismounted.Its fuselage structure is made of 100% carbon fiber material. Rack, upper cover, supporting arm, landing gear, motor bracket, etc. are all light-weight structure design ,among which six of arms adopt plug in structure, fast storage and portable,small storage size as well as easy to transport. The system's take-off load weight is less than 18kg, with largest overall dimension less than 2250mm. It only takes a few minutes to unfold its fuselage, also only a few moments to wait GPS satellite to positioning once powered-on, which is actually one small UAV operation aircraft with wide range of applications, and can be widely used in film aerial photography, aerial reconnaissance, antiterrorism, evidence collection, geological survey,remote sensing mapping, communications relay, environmental protection,meteorological exploration, disaster monitoring, aerial surveying ,public fire security, and other industries as well as fields.