The present invention relates to a slope stability evaluation system and method using a 3D terrain model and a soil classification, comprising: a terrain image acquisition unit for capturing a terrain of an evaluation area to acquire a terrain image; A three-dimensional model generation unit for estimating an external parameter in the camera and acquiring camera model information to generate a three-dimensional model of the terrain; A surface topography classifier for classifying surface and soil regions from a three-dimensional model; And a slope stability evaluation unit for analyzing and evaluating the stability of the slope or slope from the classified surface topography information. The present invention provides a system and method for accurately and quickly performing stability analysis and evaluation in a place where slope changes frequently occur on a construction site, a natural disaster area, a river coast, and the like.
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