Abstract: In this paper,we introduced common interpretation methods in Rayleigh wave exploration, analysed the primary factors of effecting on exploration precision,and provided a simple method of interpretation. The computation resulted from theoretical dispersion of two different kinds of model showed that shear wave structures obtained by this method are also coincident with true values, even if slow velocity layers are obviously included in the model.Moreover,the results obtained from observed waveform are very similar to those from single hole logging.