Research conclusions :(1)The schemes and engineering measures avoiding landslide vertically should base on plenty of detailed comprehensive geological survey and field investigation，which can greatly reduce the risk of tunnel construction and operation. ( 2)When the schemes and engineering measures avoiding landslide vertically are going to used for the new tunnel of the same kind，it should be taken into consideration that the length of the tunnel reverse slope should be shortened combined with the terrain，geological conditions, the lowest elevation of the tunnel should be heightened， waterproof and drainage problems should be resolved.(3)When the tunnel wear landslide，the full consideration should be taken into that the possibility of the landslide body above tunnel may slide due to instability under the action of the extreme weather, climate and other natural conditions. ( 4 ) This paper proposes for the first time to build tunnel in the gully region of the loess plateau by means of avoiding landslide vertically, will be very instructive for railway alignment and civil engineering construction in the similar terrain，geology，engineering conditions in the region.