Abstract: The investigation of propagation characters of SH waves in porous plate has great value for the application in NDE and acousti-elastic techniques.The varying rule of the phase velocity and group velocity of SH waves with frequency,and the influence of permeability coefficient on dispersion properties were analyzed by the theory of porous media,and it was supposed that the plate is porous media material composed of solid phase and fluid phase,and the solid phase is elastic,incompressible,isotropy,small defor...