The "Sky Eye" vertical take-off and landing UAV system is a medium-sized industrial-grade UAV independently developed by our company. It adopts a composite wing layout of fixed wing combined with four rotors. It perfectly integrates the rotor into the fixed wing system and changes the traditional fixed wing system. Man-machine take-off mode. A breakthrough solution that fixed wing is restricted by the flight runway, environment, and conditions that require professional and technical personnel to operate, realizes the combination of the two functions of relying on quadrotors for vertical take-off and landing and fixed wing for long-end cruise flight, so that UAVs are not Taking off and landing are affected by the environment, it has the characteristics of fast flight speed, strong wind resistance and long-distance missions.