In recent years, light−driven micro/nanomotors have emerged as a novel type of miniature power device, leveraging their adjustable energy input, reversible switching state and remote operability. They have demonstrated broad application prospects in water environment treatment, biomedical fields, and biosensing. This paper aims to systematically summarize the research progress of light−driven micro/nanomotors, elucidate their propulsion mechanisms, and highlight typical applications driven by different types of light (ultraviolet, visible, and near−infrared light). Despite the substantial potential of light−driven micro/nanomotors in various domains, they still face numerous technical challenges, such as low propulsion efficiency, limited motion control precision, and issues with the biocompatibility of materials. Future research directions may include the integration of multiple driving methods, enhancement of light energy conversion efficiency, and development of biocompatible materials. These efforts will promote the performance improvement and application expansion of light−driven micro/nanomotors, bringing revolutionary changes to environmental protection and biomedical fields. By overcoming current technical obstacles, light−driven micro/nanomotors are expected to play a more significant role in future scientific research and practical applications.