数字射线检测是当前射线检测的热点研究方向，其中探测器的发展进程直接决定了数字射线检测的发展方向。介绍了目前应用较广的平板探测器的发展历史、平板结构、成像过程、成像质量以及应用优势等。通过实测试验，证实了平板探测器有望取代传统的胶片成像以及图像增强器方式成像，应用前景非常广阔。

Digital radiographic testing is a hot research direction at present, in which the development process of the digital detector will determine the development direction of digital radiographic testing. The developing history, structure, imaging process, image quality and application advantages of digital flat panel detector were described. By the practical measurement, it was confirmed that flat-panel detector test was expected to replace traditional film imaging and image intensifier mode, and it showed a very broad application prospects.