Abstract: In this paper, a comparison analysis of tectonic earthquakes and collapse earthquakes is made, and their characteristics have been found.It is pointed out that the wave velocity of tectonic earthquakes is larger than that of collapse earthquakes, the apparent emergent angle is larger than that of collapse earthquakes;the attenuation of the maximum amplitude of s wave of collapse earthquakes with time is faster than that of tectonic earthquakes.It is obtained that the attenuation coefficient of coda wave of tectonic earthquaes is K_construct=1, 69, the attenuation coefficient of coda wave of collapse earthquakes K_collapse=1.13, therefore the coda wave attenuation of collapse earthquakes is slower than that of tectonic one The quality factor of earth medium obtained by tectonic earthquakes is larger than that obtained by collapse earthquakes, and the values of the quality factors are also different in mountain areas and plains.