Abstract: In ASIAEX2001, the experiment data of monostatic and bistatic reverberation were recorded. There is much difference between the two-experiment data: the monostatic reverberation loss and the vertical correlation are all much less than those of the bistatic. To explain the phenomena, on the basis of ray-mode reverberation theory and three-dimensional scattering model, the expressions of the bistatic reverberation loss and the vertical correlation are put forward. The relations between the monostatic and bistatic reverberation are discussed and compared with the experiment data. The calculation and the experiment data indicate: after a time delay (the transmission time from the source to the receiver), the long-range bistatic reverberation loss and the vertical correlation can be approximately expressed by the monostatic reverberation loss and the vertical correlation.