Abstract: Xinpu landslide is a large complex reservoir bank landslide located in the Three Gorges Reservoir area. This study conducted comprehensive investigation and monitoring of the landslide using an integrated "air-space-ground-deep" approach. Preliminary investigation data were collected through UAV LiDAR topographic mapping and field surveys. Detailed investigation and analysis were carried out on the geological environmental conditions of the Xinpu landslide and slope, along with inspection and documentation of macroscopic surface deformation signs. Based on the planar deformation characteristics, deep deformation features, and time-series deformation patterns derived from professional monitoring data, the landslide was divided into engineering geological zones. The Xinpu landslide is categorized into four main engineering geological zones and six sub-zones: the front and middle slip-bending deformation zone(Zone Ⅰ), where deformation is strongly influenced by rainfall and groundwater level fluctuations, exhibiting the largest cumulative deformation and highest deformation rate; the central slip-strain deformation zone(Zone Ⅱ), where deformation is also closely related to rainfall, with significant cumulative deformation and deformation rate; the middle-rear shallow slip-strain deformation zone(Zone Ⅲ), where deformation is rainfall-sensitive but with relatively small cumulative deformation and rate; and the rear shallow creep-strain deformation zone(Zone Ⅳ), which shows minor yet distinct cumulative deformation and deformation rate. The evolutionary process of the Xinpu landslide and slope is divided into four stages: shallow creep slip and crack propagation stage, integral sliding with front bending deformation stage, slip-bending and front cutting stage, and reactivation of the paleo-landslide stage. The research results provide a valuable reference for studying the genetic mechanisms of reservoir bank landslides and for disaster prevention and mitigation efforts.