Abstract: The study analyzed the floor water inrush influence factors of Ⅱ1 Coal Mine combining with floor water filling changes of Xin'an Mine after water storage of Xiaolangdi Reservoir, and established the multi-source information fusion model for Xin'an Mine coal floor water inrush risk assessment based on GIS method, and determined the division threshold according to the mine condition, divided three water inrush risk zones.