Research conclusions ; The monitoring data indicates that:(1)The initial support strength and supporting structure stiffness must increase correspondingly with the increase of inclined shaft depth and ground stresses，otherwise the tunnel is easy to collapse，and the method of using arch can effectively control the deformation during construction.(2)The current classification standard couldn’t be applied in large deformation of Lanzhou-Chongqing Railway Permian soft rock;it should be combined with the construction conditions to determine the corresponding supporting structure and construction measures. (3)The influence of high ground stress on the stability of rock mass should be combined with the engineering practice analysis，side wall and arch waist are the key parts of large deformation construction， construction parameters and supporting measures should be adjusted timely to ensure the smooth progress of the construction. (4)The results of study can provide guidance to the design and construction of Permian soft rock tunnel structure for future.