Abstract: This study investigated two slow-moving slopes in a mining area of Leji Town. Field surveys and UAV photogrammetry were combined with SBAS-InSAR technology and a two-dimensional displacement decomposition model to analyze landslide displacement characteristics. The key parameters of mining-induced subsidence were determined, including the subsidence basin and boundary angles. Geological conditions, time-series displacements, rainfall data, and mining records were further examined to identify controlling factors and deformation mechanisms. The results indicate that the landslides primarily involve Quaternary residual soil sliding, dominated by deformation perpendicular to the slope direction, with maximum annual displacement rates of -80 to - 60 mm·a^-1. Mining disturbance is the primary triggering factor. Underground mining generated a subsidence basin approximately 508 m in diameter, with up-dip and down-dip boundary angles of 77°and 50°, respectively. The failure mechanism follows a subsidence-bending-tensile cracking pattern. Faults, folds, steep bedding, and high topographic relief provide favorable stress, lithological, and spatial conditions for slope instability. Rainfall exerts a delayed influence on deformation and acts as an indirect contributing factor.