Abstract:In order to find out hydrogeological characteristics of Shajihai mine area, based on analysis of regional hydrogeological conditions, by means of hydrogeological drilling, pumping test and long-term dynamic observation holes, hydrogeological conditions of the mine in the mining area have been found out. Main water filling aquifers are pore and micro fracture aquifer in Jurassic Toutunhe formation, pore and fissure aquifer and burnt rock fissure aquifer in Xishanyao formation. Aquifer which will affect coal mining is mainly pore and fracture aquifer in Xishanyao formation. Identification of hydrogeological characteristics not only has an important role for safety production in coal mine, but also will guide water prevention and control effectively.