Abstract: Using the self-reconstructed triaxial experimental device, taking the coking coal of 18506 working face in Malan coal mine of Shanxi as the research object, under the condition of constant confining pressure and gas pressure, the mechanical and seepage characteristics of coal samples with different temperatures during real-time oil field heating coal samples are discussed.The results show that under the triaxial compression of gas containing coal, the higher the temperature, the lower the triaxial compressive strength, and the inverse correlation between the two, indicating that the lower the resistance of the original coal with the increase of temperature; the coal sample is subject to under the influence of partial stress, the larger the axial strain, the higher the permeability of the “V” is, the first is to decrease to the lowest point and then increase rapidly.When it is under the same strain, the high temperature reduces the permeability of gas, which is not conducive to gas.The higher the temperature, the lower the initial permeability and the minimum permeability of the coal sample, and the smaller the difference between the initial permeability and the minimum permeability at the same temperature.It indicates that the higher the temperature, the lower the influence of temperature on the permeability of the coal sample.