This book focuses on the design and development of flight control for micro-small fixed-wing unmanned aerial vehicles (UAVs). The content is progressively deepened and closely linked to current engineering practices. By conducting an in-depth study of several key themes—such as UAV design, modeling, single-machine control and planning, swarm control and planning, and the development of visual perception algorithms—this book enables readers with no prior background to grasp advanced development techniques and keep pace with the forefront of technology. As such, it offers a valuable resource for anyone interested in micro-small fixed-wing UAVs, including students, teachers, researchers, and engineers.