在反应堆压力容器螺栓孔及主螺栓加工制造和安装过程中,经常会由于设备故障或人员操作失误等原因造成螺孔和螺栓损伤,产生不符合项。其中,大多数不符合项是不影响设备的功能性及安全性的。本文总结了螺栓孔及主螺栓主要缺陷类型及接受原则,同时针对严重缺陷给出了相应的力学分析方法。 In the reactor pressure vessel bolt hole and the main bolt manufacturing process of manufacturing and installation, often due to equipment failure or personnel errors and other causes of screw holes and bolts damage, resulting in non-compliance. Most of them do not affect the functionality and safety of the equipment. This paper summarizes the major defect types and acceptance principles of bolt holes and main bolts, and gives the corresponding mechanical analysis methods for serious defects.