氢能源无人机作为新能源动力无人机中最具发展潜力的机型之一，其发展与绿色航空概念以及低空经济场景联系紧密。本文总结了氢能源无人机发展过程中涉及的关键领域和技术问题，并对相关研究进行了总结和梳理，旨在为氢能源无人机设计提供参考。本篇综述首先对氢能源无人机的发展历史、技术优势、应用场景和常见机型进行了概述，之后以总体设计技术、结构设计技术、动力系统设计技术以及飞行控制技术五大技术领域中涉及氢能源无人机的关键问题进行了分类探讨，分析了每个领域中所面临的技术前沿问题和国内外研究人员目前的相关研究。最后结合相关技术进展，对氢能源无人机的发展提出了建议与展望。研究表明，氢能源无人机的发展潜力仍未被完全发掘，需要多学科、多领域共同发力，发挥氢能在无人机增加续航时间、降低机载重量和助力绿色航空发展等方面的关键作用。

As one of the most promising types of unmanned aerial vehicles (UAVs) powered by new energy sources, hydrogen-powered UAVs are closely linked to the concept of green aviation and low-altitude economic scenarios. This paper summarizes the key areas and technical issues involved in the development of hydrogen-powered UAVs and reviews relevant research, aiming to provide a reference for the design of hydrogen-powered UAVs. The review first outlines the development history, technical advantages, application scenarios, and common examples of hydrogen-powered UAVs. Subsequently, it categorizes and discusses the key issues related to hydrogen-powered UAVs in five major technical areas: overall design technology, structural design technology, power system design technology, and flight control technology. It analyzes the technical frontiers faced in each area and the current research conducted by researchers both domestically and internationally. Finally, combining relevant technological advancements, the paper proposes suggestions and outlooks for the development of hydrogen-powered UAVs. The research indicates that the development potential of hydrogen-powered UAVs has not been fully explored and requires joint efforts across multiple disciplines and fields to leverage hydrogen's crucial role in extending UAV endurance, reducing onboard weight, and promoting green aviation development.