Abstract: The deteriorating space debris environment continuously threatens the on-orbit spacecraft. In this paper, a perforation damage pattern recognition method is designed by using the polarized polyvinylidene fluoride (PVDF) piezoelectric film, for recognizing the damage pattern of the sealed cabin caused by the hypervelocity space debris impact, and it provides a warning for astronauts to take reasonable emergency measures. Firstly, the hypervelocity aluminum bullet is launched to penetrate the aluminum target to simulate the perforation of the sealed cabin, and the debris cloud produced after perforation punctures the PVDF detector, and the measurement equipment acquires the depolarization signal and its characteristics of the detector. Secondly, the knocking test on the detector and its support structure is made to simulate the on-orbit interference signals, and the signal feature is identified. A perforation damage pattern recognition scheme with anti-interference is designed for the sealed cabin. The experiment shows that: 1) the PVDF depolarization signal has a steep rising edge (shorter than microsecond level) when the sampling rate is sufficient; 2) the frequency of the depolarization signals is mostly lower than 1 MHz, and a few of them have frequencies in the range of 3～10 MHz. The interference signal frequency is usually lower than 20 kHz. The signal could be distinguished by the frequency difference.