Abstract: With the depletion of shallow resources and the increase in industrial demand, deep resource extraction has become the primary means of obtaining mineral resources. Due to geological structures and other factors, deep mine rock masses often contain discontinuities such as faults, which significantly affect the stability of deep hard-rock roadways after excavation unloading. To investigate the influence of discontinuity orientation on the failure process of deep roadways after excavation unloading, a finite element–discrete element coupled numerical method was employed to simulate the excavation unloading process of deep roadways with various discontinuity orientations. The post-excavation failure process, stress field, and damage zone evolution were obtained. The results reveal that discontinuities dipping at 30 °–60 ° have a substantial impact on roadway stability; this angular range tends to induce fault-slip rockbursts, manifested as large-scale roof collapse and complete sidewall spalling. In contrast, discontinuities at 0 ° and 90 ° have a relatively minor effect on roadway stability, with damage being more localized, primarily involving local failure in the roof and floor. After excavation unloading, stresses concentrate near the arch crown adjacent to the discontinuities and at the floor corners, reaching approximately 2 to 2.5 times the initial maximum horizontal principal stress. Following roadway excavation, the damage zone first appears concentrated near the arch crown close to the discontinuities and at the floor corners; macroscopic failure develops within the damage zone, and the damage zone guides the formation path and extent of the failure zone.