Abstract: With the rapid increase of the broadband seismic stations on the world,P receiver functions technique with teleseismic events is very suitable for studying the crust and uppermantle structure beneath stations,thus becoming one of the standard tools for such study.The principle of P receiver functions is to separate the converted PS phases generated at the discontinuities beneath stations and to determine the depth of the discontinuities with the converted PS phases.In the study,we have introduced the P receiver functions technique which isolates the S wave (PS conversion phase) from P wave coda by rotating and deconvolving 3-conponent recordings.However,the presence of lower-velocity sediment may give rise to strong reverberations in P receiver functions.We have applied the filtering technique to remove the effect of the strong reverberations on the PS phase,PpPS and PpSS+PSPS phases generated at the discontinuities in crust and upper mantle.On the other hand,since the PS phase,PpPS and PpSS+PSPS phases generated at the discontinuities in crust and upper mantle are very weak,so we have applied phase-weighted stacking technique to improve the signal-to-noise ratios in P receiver functions.