Abstract: In order to study the influence law of vibration frequency on permeability characteristics of coal containing gas, the "vibration-triaxial-seepage" device was used to carry out the permeability test of coal containing gas under different vibration frequencies and gas pressures, and the fluid solid coupling model was brought into the software for verification. The results show that the permeability of coal containing gas decreases first and then increases with the increasing gas pressure, and the critical point of Klinberg gas pressure of the curve is about 1.0 MPa; the permeability of coal containing gas increases gradually with the increase of vibration frequency, when the vibration frequency exceeds 10 Hz, the permeability decreases slowly and finally tends to be stable; considering the influence of vibration on coal and rock, the dynamic evolution equations of porosity and permeability are derived and brought into the Ansys simulation software to verify the accuracy of the equations.