Research conclusions:As the Qiyueshan Tunnel cut through the high pressure and enriched water region of the Fault 11，the maximum volume of water inrush and the water pressure during boring stage were up to 1800 m3/h and 3.2 MPa respectively and it brought out the big construction risk． According to the principle of " Taking water blocking as the main factor with the water draining in limitation" ，the mixed slurry of the sulphate aluminium cement single－fluid slurry，common cement single－fluid slurry，and cement and sodium silicate mixed slurry with the rational proportioned parameter of mixing slurries during the construction progress was used for blocking the water in the high water pressure and enriched water area ahead of the working face and the high pressure water was effectively controlled with the water－seal curtain. Meanwhile the crushed surrounding rocks in front were reinforced．It paved the way for the construction safety and the surrounding ecological environment protection and could be as the reference to similar works in the future．