Abstract：Research purposes： New Gotthard tunnel has a length of 57.1 km, is one of the world's longest railway tunnel. In the process of its construction, in view of the complicated geological conditions, a series of research results is achieved. Gaoligongshan tunnel is the longest railway tunnel being built in our country, the total length of 34.538 km, same complex geological conditions, and will encounter many technical problems in the process of construction. Therefore , through reviewing and refining the technological achievements of New Gotthard tunnel , the Gaoligongshan tunnel geology is systematically analyzed , which will provide beneficial guidance on the successful construction of the Gaoligongshan tunnel. Research conclusions:( 1 ) The Gaoligongshan tunnel has the characteristics of 11 diversiform stratigraphic lithology , complicated geological structure , rich tunnel water , high ground temperature geothermal , obvious soft rock stress" , the construction process will encounter the technical problems , such as rich water fault , high ground stress deformation of soft rock , high temperature harm , and need to use the construction experience of New Gotthard mountain tunnel , adopt a series of technical measures , such as advanced support , grouting reinforcement and cooling and ventilation , to ensure the construction safety. (2) The Gaoligongshan tunnel construction period is short , the mechanical equipment setting and the construction organization and management must be strengthened , to ensure to finish on time. (3) The research results can be applied to design and construction of other tunnel engineering.