The deformation and movement of surrounding rock of soft rock roadway has important affect to the stability of whole roadway structure.The finite difference software FLAC(3D) for Fast Lagrangian Analysis of Continua was applied to study and analyze the deformation and damage process of surrounding rock.The deformation and stress condition of surrounding rock were analyzed.The stability of surrounding rock of roadway and the security of primary support structure were judged synthetically,and some beneficial results were gained.