华北地区特别是太行山东麓、南麓的煤田在开采下组煤的过程中普遍地受到底板奥陶系灰岩岩溶水的威胁 ,突水淹井事故时有发生 ,传统的底板突水预测方法受到了前所未有的挑战。本文从分析煤层底板水文地质条件、突水因素、突水机理为切入点 ,在 GIS的支持下 ,建立了煤层底板突水预测模型 ,效果较好 North China, especially the eastern foot of the Taihang Mountains, the coalfield in the south foot is generally threatened by the karst water in the basement Ordovician limestone in the process of coal mining. Inrush accidents occur frequently. The traditional method of forecasting floor water inrush Has been an unprecedented challenge. Based on the analysis of hydrogeological conditions, water inrush factors and water inrush mechanism of coal seam floor, this paper established a prediction model of coal floor water inrush with the support of GIS