Abstract: Because the deep rock mass is in stress field, seepage field and temperature field three-field coupling environment for a long time, it results in that the rock property is different from the shallow rock. Deeply understand and master the mechanical properties of engineering rock mass in deep environment is very important and urgent. We carry on the summary analysis of coupling relationship among three fields, and present three equilibrium equations, and establish numerical model including stress field, seepage field and temperature field by FLAC^3D. And according to the simulation of stress and displacement, we analyze the influence of the pore water pressure, temperature and heat convection coefficient on deformation and failure of roadway.