Research methods: That were scientific research experimentation，investigation，expert-consultation，drawing on the domestic or overseas correlative research fruit and excellent criterion，and the success experiences that come from the completed projects.
Research results: This paper gained these new content that exists mainly in the tunnel design conception，the portal project the tunnel support-structure system，the waterproofing & drainage of tunnel } and the system that can rescue people and prevent form disaster and should be emphasized and consummated in tunnel design in future by compiling the code for design on tunnel of railway(TB 10003-2005).
Research Conclusions: As long as people emphasize the aspects that were presented in this paper and follow the conceptions that based on the ideas，namely ”human first provide service for transportation，system optimization , with a view to development and build friendly circumstance"，people should can design lots of safe，reliable，economic and perdurable hundred-years tunnel project for the future.
2007, Vol. 24 
