The invention discloses a containment vessel recirculation interception device, and the device is disposed in a pit main body of a containment vessel. The height of the device is less than the minimum water level of a pit. The device comprises at least one fixed assembly for intercepting fragments. The modular design reduces the weight of the device, can reduce the machining difficulty, facilitates the disassembly, greatly improves the environment adaptability, effectively reduces the fragment loads of a pit filter screen, reduces the pressure drop of the pit filter screen, and improves the design margin of the pit filter screen.