Aiming at the problem of high temperature hidden danger in coal mine goaf, this paper studies the intelligent diagnosis and directional fire extinguishing strategy. Through the quantitative feature extraction of multi-source monitoring data, the intelligent diagnosis system of high temperature hidden danger in goaf is constructed, and a comprehensive risk assessment model based on data fusion is proposed. Combined with parameters such as temperature field and gas concentration, the weight is dynamically adjusted, and the risk level of the hidden danger area is evaluated in real time by calculating the comprehensive risk index. The study also designed a hierarchical management strategy for high temperature hidden dangers, optimized fire extinguishing materials according to the risk level, and implemented directional fire extinguishing in combination with directional drilling and precision grouting technology.