Abstract: Based on digital waveform data on Anhui seismic network, using wave spectrum analysis method, corner frequency and predominant period of P wave and S wave of small explosions and earthquakes records in Anhui and its surrounding area are calculated in order to get the identification quantitative index of explosions and earthquakes.Comparisons show that there is obvious difference between the corner frequency and predominant period of the explosions and that of the earthquakes, which is a new identification criterion of small explosions in Anhui.In addition, other criterion characteristics of explosions and earthquakes are also summarized in this paper.