The deep coal field geological structure was complex in Fengfeng mine district. There was some complex water diversion structures such as concealed miniature collapsed column and cracking and so on, strong water-rich runoff zone was still developing in Kilometer deep Ordovician limestone aquifer, the mining of coal seam floor withstanding the ash karst water pressure as high as 10.8 ~ 11.2 MPa, severe water inrush accidents happened in the recent 10 a. The concept of water disasters prevention and control has had the huge transformation, the advanced regional governance technology, core technology was multiple horizontal branch holes based on mine protection system by analyzing the damage characteristics of deep Ordovician limestone aquifer and reasons of water inrush accidents. Through a large number of engineering practice, the water inrush accidents of deep Ordovician limestone aquifer was controlled basically, ensuring the safe production?of the mine.