本文针对我国高陡山区磷矿开采的工程实际情况,利用灰色系统理论对已有的实际工程资料进行了分析。在此基础上建立了预测山区地下磷矿开采引起岩体失稳的灰色系统理论分析的数学模型,并对具体矿山工程实例进行了计算和分析。针对高陡山区具体情况,提出了地下安全开采技术方案,以供矿山设计和工程技术人员参考。 In this paper, according to the actual situation of phosphate rock mining in the high and steep mountainous areas in China, the existing engineering data are analyzed by the gray system theory. On this basis, a mathematical model of gray system theory for predicting the instability of rock mass caused by underground phosphate rock mining in mountainous areas was established. The calculation and analysis of specific mine engineering examples were also carried out. According to the specific conditions of high and steep mountainous area, the underground safety mining technology scheme is put forward for the reference of mine design and engineering technicians.