<p>Slope stability is of great significance for preventing geological disasters, ensuring the safety of infrastructure and avoiding environmental damage. To conduct a higher-quality analysis of the risks of slope deformation and cracks, this study combines the building information model and the finite element model to conduct a systematic and in-depth study on the stability of slope deformation and cracking. The research innovatively utilizes building information modeling and finite element modeling techniques to establish a digital model of the actual slope and combines the finite element method to simulate the stress distribution and deformation characteristics of the slope under different working conditions. Through parametric meshing and multi-physics field coupling analysis, the influences of crack depth, width and soil density on stability are quantified. The results show that the deformation map of the slope predicted by the finite element model shows a symmetrical distribution of deformation magnitude and trend on both sides. The maximum deformation occurs in the middle slope, at 14.01&#xa0;cm. During the 85-year period from the beginning of slope formation to the end, the reliability index only increases from 3.76 to 4.73. The study clarifies the important impact of slope deformation and cracks on stability, providing important references for subsequent slope design and management. The results of this study can be applied to the construction of highways, railways, and dams. They can help prevent disasters caused by unstable slopes and ensure the safety of people's lives and property.</p>