Decision to accept a valid application: 27081/QĐ-SHTT.IP (03/07/2025). This invention relates to the field of unmanned aerial vehicle (UAV) technology, specifically fixed-wing UAVs capable of vertical take-off and landing (VTOL)—utilizing a three-rotor configuration—combined with horizontal flight capabilities. The invention proposes a fixed-wing VTOL UAV that achieves vertical take-off and landing through a tri-copter configuration combined with a controllable tilt-motor mechanism, featuring a retractable landing gear system and a quick-detach modular design. Featuring a a tri-motor configuration featuring an intelligent navigation mechanism and a multifunctional integrated structure, this UAV reduces manufacturing costs and energy consumption while enhancing maneuverability and operational efficiency, making it suitable for various practical applications such as precision agriculture, terrain monitoring, emergency rescue, light cargo transport, and special missions in hard-to-reach areas.