本論文目標為設計一個控制系統以控制無尾翼構型的UAV。姿態控制器使用狀態控制並以LQ最佳化方法來設計控制器的增益值,硬體架構以PC105 單板電腦搭配PIC 單晶片組成整個控制系統。最後以本系統使無尾翼構型的UAV 達到自主飛行的目的。 The goal of paper is design a control system to control tailless UAV. Attitude control use state feedback control and use LQ method to design control gain. The controller hardware contains PC104 onboard computer and PIC micro controller to make up all control system. This control system will enable tailless UAV to automatic flight.