超高速激光熔覆是新兴的表面涂层技术，通过粉末和激光的最佳耦合实现熔覆效率的大幅提升，相比传统激光熔覆涂层可以获得更优质的表面质量，且对基材损伤更小。通过分析超高速激光熔覆的原理及技术优势，并与传统激光熔覆技术特点进行对比，总结了激光功率、扫描速率、送粉速度以及搭接率对熔覆层成形的影响，详细介绍了超高速激光熔覆涂层的硬度、耐磨、耐蚀等关键性能的研究现状，并且列举了国内外对超高速激光熔覆技术在工业应用现状。最后，基于目前的研究进展，指出目前对于超高速激光熔覆涂层和基体界面结合状态及涂层构件力学方面处于研究空白，并对该技术的发展提出展望。以期为超高速激光熔覆技术的广泛应用提供理论支持。

Ultra-high-speed laser cladding is an emerging surface coating technology. Through the optimal coupling of powder and laser, the cladding efficiency can be substantially enhanced, surface quality can be made better than that of traditional laser cladding coating, and damage to the substrate can be minimized. The principle and technical benefits of ultra-high-speed laser cladding are introduced in this study. The influence of laser power, scanning rate, powder feeding speed, and overlap rate on the cladding layer formation is summarized by comparing with the characteristics of traditional laser cladding technology. In addition, investigation status of the major properties of ultra-high-speed laser cladding coating, such as hardness, wear resistance, and corrosion resistance, is introduced in detail, and the industrial application status of ultra-high-speed laser cladding technology at home and abroad is listed. Finally, based on the current investigation progress, it is pointed out that there is a gap in the study on the interface bonding state of the ultra-high-speed laser cladding coating and the mechanics of the coating component, and prospects for the development of this technology are presented. It is predicted to offer theoretical support for the extensive application of ultra-high-speed laser cladding technology.