Nuclear power station containment test system under depth defense

The invention relates to a nuclear power station containment test system under depth defense. The nuclear power station containment test system comprises a containment overall leakage rate measurement module, a containment sound leakage detection module, an alarm module and a display module; the containment overall leakage rate measurement module is used for measuring the overall leakage rate in the containment and calculating measurement data to obtain the real-time overall leakage rate and uncertainty of the containment; the containment sound leakage detection module is used for monitoring a sound signal of a containment, analyzing and processing the monitored sound signal and then outputting a containment sound leakage detection measurement result; the alarm module outputs corresponding alarm signals when the real-time overall leakage rate, the uncertainty and the sound leakage of the containment are detected; and the display module is used for displaying the real-time overall leakage rate, the uncertainty