Abstract: Huainan coalfield is a typical north China type coalfield.Xinji No.2 coal mine of China Coal Xinji Energy Co., Ltd. is located in the south of Huainan coalfield.No.1 coal seam of Shanxi formation is in the environment of "high water pressure and thin water resisting layer" in this coal mining area.Therefore, No.1 coal seam mining process is threatened by high-pressure of underlying karst confined water.In addition, the unique geographical structure of the coal mining area, a variety of vertical concealed structural patterns superimposed with large-scale thrust faults have been formed.The effect of 3D seismic exploration is not good, because of the influence of thick nappe gneiss, Cambrian high shielding and surface water on coal measure strata.So it is difficult to find out the vertical guide(aquifer) water channel from No.1 coal seam to the floor limestone strong aquifer.Therefore, the superposition of the above factors aggravates the threat of water disaster in the safe mining of coal resources, the probability of coal mining accidents are increased.Combined mining planning and in strict accordance with relevant requirements, Xinji No.2 coal mine carries out ground advanced regional exploration and management project in 220106 working face threatened by high pressure Ordovician limestone water.In order to adopt multi branch horizontal directional well technology to explore the concealed water conducting structure in the working face area and plugging by high pressure cement grouting, to achieve the purpose of safe driving and mining in working face.This paper focuses on the evaluation of the ground advanced regional exploration management project and its effect of 220106 working face of No.1 coal seam in Xinji No.2 coal mine, which can provide a basis for the driving and mining of this working face and provide a reference for the development of similar projects in this area.