Research results:Based on the hydrodynamic simulation tes,t much high-pressured groundwater isplugged effectively by taking themeasures of selective plugging, curtain grouting in advance, vertical grouting-plugging and grouting- pluggingwith gunny bags and string bags. Based on numerical simulation testwith discrete elementmethod, rock blasting disaster is prevented by talking the measures of relaxing stress in advance, controlling blas,t and using expansion anchorbol,t mesh and steelarch rib and spraying the concretewith thin zeolite powderadditive. Based on the aerodynamic simulation tes,t large powerful jet fan and jetgallery ventilation technology are developed, which settled the technical problem of the ventilation for the construction of blind heading with long distance trackless transport and created the world record of blind heading with trackless transport of 9 800 m. After doing the research on integrated geological forecast in advance and the technologies of shot-concrete in rock blast and water- rich section, fast construction and supervision of long tunne,l the geological forecastaccuracy is increased to above 85% and construction efficiency is improved much. The successful construction of Jinping Tunnel brings out a set of comprehensive construction technology for deep-buried long tunnels in high-pressure and water-rich stratum and promotes the developmentof tunnel construction technology in China.