Abstract：Based on the floor rock mass stress distribution rule and the confined water leading to the the floor damage study, 1711 face water inrush point structure of the composite structure of surrounding rock conductivity model was set up and the formation mechanism of water inrush was analyzed. Based on 1711 face water inrush point actual geological structure research, the following conclusion: the water pressure was the main factors of water inrush disaster, namely the existence of the karst aquifer; Floor karst was coal mining safety; Most of the water inrush was a common effect caused by geological structure and mining activities, the study provided reference for prevention and control of water in coal mine production.
