Firstly,we computed the receiver function of 2040 teleseismic P-wave waveforms which were received by 34 broadband seismic stations located in Chongqing and its adjacent area.Secondly,we obtained the Moho depths and wave velocity ratios under 34 seismic stations by the H-k scanning technology,and aided by the time delays reading of converted phase,then computed Poisson' ratios by use of wave velocity ratios.The results show that the overall trend of Moho depths variation beneath Chongqing is relatively smooth,increasing gradually from 40 km to 56 km from south to north,and the corresponding Poisson' rate is from 0.28 to 0.30.At last,we discussed the good and bad between the H-k scanning technology and the time delays reading of converted.