For few domestic and international studies of the radio propagation in the overburden of the earth ' s crust , this paper theoretically stresses the propagation problem of low frequency radio wave , including slf wave and vlf wave , in the medium and briefly introduces the theory of scale model testing method 针对国内外有关电波在地壳覆盖层中传播研究工作的空白,本文主要从理论上讨论低频(包括特低频和甚低频)无线电波在该种介质中的传播问题,并简要介绍缩比模型测量理论。