Abstract: In practice, the commonly used methods for elimination of coherent interference are muting, bandpass filtering,F-X predictive filtering, wavelet transform elimination, and mean-weighted elimination. In essence, bandpass filtering,F-X predictive filtering, and wavelet transform elimination are some kind of muting techniques. Since signals and noises are mixed in every domain, elimination of coherent interference with muting techniques will always impair the desired signals. The mean-weighted elimination requires that the coherent interference be linear, which sometimes is not hold. So far there is no method that is able to separate the signals from interference without harming the desired signals. Based on an analysis of the feasibility of every interference elimination method, the author put forward several criteria in adoption of methods for elimination of coherent interference.