In this study, we analyzing the ground deformation response in water-bearing sandstone ground caused by tunnel excavation. Moreover, based on the field monitoring data of Xiang-an subaqueous tunnel in Xiamen, taking a deep research on ground deformations caused by large cross section tunnel excavation. From our research results, during tunnel excavation surface settlement and extensometer settlement may be divided into four stages: slight deformation stage, rapid deformation stage, stable stage and slow deformation stage.