In solar-powered drones, the design of the wing plays one of the most important roles. This article explores optimal wing design considerations to enhance the performance of these UAVs, focusing on high aspect ratio wings, lightweight structures, solar panel integration, and aerodynamic efficiency. Key design parameters and trade-offs are discussed, supported by calculations and theoretically analysed. The study aims to provide a comprehensive framework for optimizing wing design to achieve extended flight durations and operational effectiveness in low-altitude environments.