Kangsu Tunnel is located at 9 degree fortified are in the road Kashi to Irkeshtam,and there are few references of similar geological conditions at home.This pape analyzes and calculates structural stress in shallow tunned section of high seismic area and provides reference for future design and construction of the tunnels at high seismic areas in Xinjiang so that the design of tunnels at high seismic areas is safer,more economical and rational.