The theory and technology of mine water hazard prevention and control are improving in China, but the methods of evaluating water inrush risk of coal seam roof and floor are mainly static and dynamic evaluation along the workings are shortage. According to the hydrogeological structure, main controlling factors of water inrush, water inrush disaster models and water damage type in northern and northeastern China. The relationship between the risk sources of water inrush of coal seam roof and floor and the risk of disaster caused by the three suggested criteria: water filling aquifers, water flow channels and mining disturbance, and the index system of risk sources of water inrush of coal seam roof and floor was established. The index factors (aquifers’ water pressure, stress-strain, height/depth of failure zone) that have dynamic changes with mining excavation in the index system are taken as the dynamic characteristics identification targets of water inrush hazard sources. The multi-field and multi-parameter dynamic evaluation model of water inrush risk of working area was established. The multi-field information in situ of working were collected, extracted, interpolated and input. The critical criterion of mine water inrush is proposed, it provides guidance for dynamic evaluation zoning of water inrush risk of coal roof and floor and forecasting and warning of water inrush of working area.