Abstract: Pile sheet wall is a common retaining structure in slope and landslide treatment engineering. There are significant differences in structural stress, economic benefits and environmental protection between different types of hanging plate. In view of the landslide treatment project in the process of land opening in western mountainous areas, the types and applicability of pile sheet wall hanging plate are expounded based on technical and economic comparison. Based on Lanya Xinghewan project, this paper analyzes the deformation characteristics of the landslide and the overall design of the treatment project, focusing on the optimization comparison and selection of pile sheet wall hanging plate methods.