The powerhouse slope of Wukuo Power Station presents significant engineering challenges due to its high height and fractured rock mass. During excavation, the slope has shown considerable deformation, particularly in the shallow rock layers. Furthermore, the area between the outlets of water conveyance tunnels 6 and 7 experienced local collapse due to inadequate systematic anchor support. This research work aims to design effective support measures to ensure slope stability, monitor deformation accurately, and analyze the causes of local collapse. We employed finite element analysis (FEA) and computational fluid dynamics (CFD) for safety monitoring and data analysis. These techniques were used to simulate stress distribution, deformation, fluid flow, and erosion patterns. The monitoring data exposed that deformation was predominantly in the shallow rock mass, with effective control achieved through targeted support measures. FEA and CFD analyses demonstrated the effectiveness of these measures in improving slope stability. This research highlights the importance of selecting suitable support measures for similar projects, contributing insights into reducing construction costs and time while ensuring safety. The amalgamation of FEA and CFD proved to be better when compared to traditional methods by showing significant reductions in stress, displacement, and erosion rates.