How to accurately understand and forecast the seepage-stress coupling function of the fractured rock body surrounding tunnel is significant for the design and construction of deep buried high-pressure tunnel of Jinping Second-cascade Hydropower Station.The spatial uneven distribution of the seepage coefficient of the fractured rock mass in Jinping Mountain was produced by the stochastic continuum model.The stochastic continuum field that was generated with the sequential indicator simulation method was introduced into finite element program for coupling analysis.The calculation results showed that the stochastic continuum model can give a better prediction of the maximum infiltration rate of underground water in the excavation of tunnel of Jinping Second-cascade Hydropower Station.The spatial variability in permeability plays an important role in the coupled hydro-mechanical processes of the fractured rock mass and induces a discontinuous distribution of principal stresses.It is also found that water recharge can affect the mechanical behavior of the support and increase the load on the liner.The results indicated that the moments on the liner increase by 22% after the water recharge.