The Tianjing Mountain mining area is a typical limestone quarrying region for construction purposes in the arid northwest of China. Due to severe environmental damage in the mining area, natural revegetation is no longer possible, and there is an urgent need for restoration and management. In light of this, from the overall perspective of the mine's ecological and geological environmental system, research was conducted on the ecological and geological environment of the mining area using the Analytic Hierarchy Process (AHP) and Fuzzy Comprehensive Evaluation (FCE) methods. An ecological and geological environmental evaluation system was constructed that is consistent with the characteristics of typical arid areas and oriented towards mine ecology restoration. This system aims to quantitatively and accurately determine the quality levels of the ecological and geological environment of the mining area and match appropriate restoration and management models for corresponding levels. Ultimately, targeted restoration and management of the mining area were carried out using a combined model of geological disaster risk elimination, soil reconstruction, and vegetation restoration determined by the evaluation system. After long-term manual maintenance, secondary revegetation of the mine relic site was ultimately achieved. The results show that the research findings provide a relatively objective evaluation of the ecological and geological environment of limestone mines in arid regions and have good restoration and management effects. They can be replicated and promoted for application in local and similar arid and semi-arid regions for the restoration and management of mine relic sites.