With the continuous advancement of artificial intelligence technology, low-altitude operations, as a typical example of new-quality combat capability generation, are gradually influencing and reshaping the patterns and rules of modern warfare. This paper first reviews the current state of domestic and international research on low-altitude operations, then defines the concepts and characteristics of low-altitude operations and new-quality combat capabilities. On this basis, it systematically explores the construction of a multi-domain integrated low-altitude operational system and conducts an in-depth analysis of the key technologies and performance metrics involved in the system. Finally, it discusses the development trends of technologies for generating new-quality combat capabilities in low-altitude scenarios, aiming to provide a reference for future research on related technologies.