Abstract: Through the research on mathematical model,physical model and real data of the dissemination rule and motion form of transverse wave,it is founded that transverse wave has the same characteristic in three-dimensional wave field of longitudinal wave.In the light of this feature,field observation on three-dimensional transverse wave can be done.A great deal of practical data show that,using the data of three-dimensional transverse wave can explain the cavity and ancient lane,buried at the depth of 5~40 m and can stratify precisely the layers simultaneously.