Abstract: Corridor slope is a kind of slope using a natural (or artificial) corridor formed along the steep slope as a tour path in tourism development. However, due to the existence of the structural surface of the slope itself, as well as the role of plant root system and weathering in the scenic area, the rock layer on the slope surface is relatively loose, which often leaves some hidden dangers in the construction process of the scenic spot, which may lead to dangerous accidents such as slope collapse, rock falling and injuring people in the scenic area. This paper takes a slope with rockfall and collapse in Shark Bay Scenic Area of Shepan Island National Mine Park in Zhejiang Province as an example, conducts relevant research: through geological survey and survey, to obtain the geomorphic features of the rock slope, and the structure of the slope rock mass classification and evaluation; obtaining point cloud data by 3D laser scanning technology, geological modeling and meshing using the Geomagic and Hypermesh software tools, simulation of the study slope stability by using the finite difference software Flac3D,obtain information on stress field, displacement field, plastic zone, overall stability evaluation of the side slope, put forward the rectification opinions and prevention measures of the original tour road. The research results of this paper have certain scientific significance and application value for the prevention of geological disasters in mountain scenic spots.