In order to study the distribution rule of temperature field in surrounding rock of deeply buried roadways

the mathematical model of thermal diffusion is proposed based on heat transfer and seepage theory. Combined with boundary condition

the distribution of temperature field and temperature vector of surrounding rock under coupling airflow and seepage is obtained by using MATLAB. The results show that seepage changes symmetrical distribution of initial temperature field and vector

and the temperature field in surrounding rock may be divided into inward-diffusion area and out-diffusion area. When heat change between surrounding rock and airflow

wall temperature of roadways will approach to the temperature of airflow; and the scope of zero temperature vector will enlarge step by step. Temperature field of inward-diffusion area is annular and symmetrical distribution when heat change reaches balanced state; and the shape of isothermal curve in out-diffusion area doesn’t change obviously. At the same time

distribution of isothermal curves becomes rarefied.