介绍了海关大型集装箱在线检测用加速器的核心部件 9MeV行波电子直线加速器加速管的微波测试及调整 ,并详细描述了加速管微波调谐、加速管与矩形波导匹配以及加速管整管场分布及总衰减量的测量 ,给出了加速管微波测试及调整的结果 ,结果表明微波调试满足物理设计的要求 This paper introduces the microwave testing and adjustment of the 9 MeV traveling wave electron linear accelerator accelerating tube, which is the core component of the accelerator for on-line inspection of large containers. It also describes in detail the accelerometer microwave tuning, accelerating tube and rectangular waveguide matching, The attenuation measurement is given and the result of the microwave test and adjustment of the accelerating tube is given. The results show that the microwave debugging meets the requirements of the physical design