Infrared band-pass filters are important components of infrared detectors to determine spectral response range. But cutoff wavelengths of the spectrum of infrared band-pass filters drift at low temperature, which influences spectral response range of infrared detectors. In order to explore the spectrum drift of the filters at low temperature, several typical infrared band-pass filters are selected and the self-made low temperature spectral test dewar is used to carry out spectral test at room temperature and 77 K respectively. The results show that the front cutoff wavelengths of tested filters all drift toward short wavelength direction at low temperature, and the drifts are mainly related to the waveband of filters. The drifts increase as the waveband increases. The drift of the cutoff wavelength of the medium band-pass filter is less than 100 nm at low temperature. The substrate material has little influence on the cutoff wavelength drift. The conclusion has important reference value for the spectral design of infrared detector filters.