利用CT技术进行岩土体损伤特性的研究是当前岩土工程的重要研究方向之一。介绍了CT技术的技术优势、发展现状、检测原理,简述了CT技术在岩石常规加载下对损伤特性、特殊环境下岩石结构细观损伤特性以及土体结构性等岩土工程研究中的应用现状,并提出该领域研究面临的主要问题。 It is one of the most important research directions of geotechnical engineering to study the damage characteristics of rock mass using CT technology. This paper introduces the technical advantages, development status and detection principle of CT technology, and briefly introduces the application of CT technology to the geotechnical engineering such as damage characteristics under normal rock loading, meso-damage characteristics of rock structure in special environment and soil structure. Present situation, and put forward the main problems that the research in this field faces.