Geological environment safety assessment in mining areas is a fundamental work in national spatial planning. Taking the Fushun-West Open-pit Mining as the research prototype, and through empirical analysis of typical cases of geological environment problems caused by resource development, the mechanism of geological environment safety process is clarified and a geological environment safety evaluation index system suitable for the characteristics of the mining area is established. The spatiotemporal changes of geological environment safety in the mining area is grasped, a comprehensive evaluation of geological environment safety is conducted, and the mining area is divided from high to low and its area range based on the five levels of safety. The evaluation results objectively reflect the geological environment conditions and safety level of the Fushun West Open-pit Mining Area, and provide reference basis for geological disaster prevention and comprehensive utilization of land resources in the mining area.