Support in soft rock roadway was a complicated and important technology in the underground engineering field. The geological characteristics of tunnel engineering caused broken surrounding rock, the lower rock strength, serious heaving of floor rock-mass, serious spalling and vault shear. Analysis showed that the tunnel deformation failure mechanism: Roadway excavation of rock stress release, stress readjusting the balance. In the process of the structural plane shear dislocation and surrounding rock intensity were greatly reduced. Surrounding rock of roadway was under high ground stress, low confined pressure and high stress difference, severe plastic deformation damage. Through the numerical simulation constructed the different shape of roadway supporting schemes in different ground stress environment.