Abstract: With the aim to solve the problem on how to choose jamming suppression method between the blind source separation(BSS) and the adaptive sidelobe canceller (ASLC), the jamming suppression performance of BSS and ASLC are comparatively analyzed. Based on the study on the principles and signal processing methods of BSS and ASLC, the jamming suppression performance of BSS and ASLC under different jamming and signal-to-noise-ratio conditions are investigated by simulation. Through analysis, the theoretical basis for the choice of jamming suppression method under different scenarios is presented, i. e. , the ASLC is more effective in suppressing sidelobe jamming, while the BSS technique performs better on mainlobe jamming suppression.