Abstract: In order to obtain the influence of stress and temperature on the permeability and compaction characteristics of crushed residual coal, this paper conducts seepage tests on crushed coal samples by means of graded loading through an independently designed permeability system, and obtains the constitutive model of compacted crushed coal considering temperature. The results show that: the permeability increases with the change of temperature. In the process of spontaneous combustion of residual coal in goaf, with the increase of temperature, the internal microstructure of coal changes and the accumulation of particles becomes more loose, which leads to the increase of permeability of broken coal. The porosity of broken coal body shows a negative exponential decreasing trend with the increase of axial stress. The porosity and coefficient of broken expansion both increase with the increase of temperature. The coefficient of broken expansion corresponding to 125 ℃ is 0.03 larger than that corresponding to 25 ℃. Secant modulus Es and tangential modulus Et of broken coal increase with the increase of strain during compaction deformation, and under the same strain condition, E_s and E_t of broken coal decrease with the increase of temperature. By fitting the relationship between secant modulus and temperature of fractured samples under the action of stress σ_i, the constitutive relation of compacted fractured coal considering temperature is established.