对超声波C扫描检测系统的发展历史和发展方向作了简要的叙述和归纳，对国内外的超声波C扫描检测系统产品进行了简单介绍，对超声波C扫描检测中常见的平面扫查系统、回转体扫查系统、大型空间曲面构件扫查系统、管材与棒材旋转行进的扫查系统和便携式扫查系统等五类系统的特点和应用范围进行了总结，为业界选择合适的检测系统提供帮助。

History and direction of future development of ultrasonic C-scan testing system were given simply in this paper. Products of several native systems and foreign systems were shown and described. Characteristics and application of five kinds of common ultrasonic C-scan testing systems such as planar scan system, revolving scan system, great non-planar scan system, revolving feed scan system for bars and tubes and portable scan system, were concluded, which would be helpful for choosing a system for specific application.