Abstract: Due to coal mining in northern Peixian Courty, changes in topography, landforms, and land types have directly affected the ecological security of the entire region. An ecological security pattern needs to be constructed based on the evaluation of regional ecological security conditions. This study took the northern area of Peixian County as the research object, and selected the following eight indicators: elevation, slope, land cover type, vegetation cover, distance from water body, distance from road, distance from mine site, and distance from residential site. The spatial principal component analysis (SPCA) method was used to evaluate the ecological security status of the study area, and the minimum cumulative resistance (MCR) model was used to establish the ecological resistance surface. The GIS spatial analysis technology was used to extract ecological corridors and ecological nodes to construct the ecological security pattern of the study area. The results show that the level of ecological security in the study area is not high. The area with a moderate security level is 447.53 km², accounting for 44.53% of the total study area, and the area with a lower security level is 344.58 km², accounting for 34.28% of the total study area. 31 potential ecological corridors, 31 first-class ecological nodes, and 20 second-class ecological nodes were identified. Those corridors and nodes, together with the ecological source form the ecological security pattern of the study area, which provides a valid reference for ecological planning and ecological sustainable development in northern Peixian County.