Abstract:The research progress in thermal-hydraulic-mechanical(THM) coupling model in rock mechanics is summarized. The rock(rock mass) failure process under the thermal-hydraulic-mechanical coupling function will directly affect the thermodynamic characteristic,the seepage characteristic and mechanical stability of surrounding rock around high-level radioactive wastes geological disposal repository,further affect the migration rules of high-level radioactive nuclide in surrounding rock. The macroscopical behavior of rock structure failure is modeled by building a model which describes the rock(rock mass) failure process under the thermal-hydraulic- mechanical coupling function. The analysis results show that this method has important scientific values and practical significances for the reliability of high-level radioactive wastes disposal.