Abstract: With the frequent occurrence of accidents and disasters, disaster rescue work faces increasing challenges.Ultra-wideband(UWB)radar technology, with its excellent penetration ability and resolution, can effectively penetrate non-metallic obstacles such as soil, rock layers, and concrete, and detect the weak life signals of trapped people in real time, making up for the shortcomings of traditional rescue methods in harsh environments, and gradually becoming an important tool for personnel search and rescue in complex rescue scenarios.We introduce the working principle and classification of UWB radar, analyze its application status in disaster rescue, and focus on its practical application and technical advantages in disaster scenarios such as earthquake rescue and mine accidents.Finally, the paper sheds light on the development potential of UWB radar in future mine rescue and other special environments, and proposes research directions to further improve its performance.