Abstract: Based on the complex geological conditions of high pressure and rich water as well as broken floor in return air roadway of ventilation shaft in Jinding Coal Mine of Yima Coal Industry Group, the drilling construction technology was studied in the special geological condition. On this basis,the reason of water inrush in the high pressure and rich water roadway was analyzed. The high performance grouting material was used for grouting water plugging on the roadway floor, to governance the water inrush of the roadway floor. The results showed that the roadway floor was only 40 m from cold grey water, under the influence of drilling construction in the early stage, the cold grey water was introduced into shallow floor. Because of the combination of mine pressure and high pressure water, the crushing and floor heave appeared in roadway, and led to the increase of water inflow. Complex geological conditions caused the difficulties of roadway drilling construction. Through a variety of solutions for drilling construction methods, the grouting drilling achieved successfully. At the same time, the roadway water inflow was reduced effectively with the grouting reinforcement method of the combination of roadway floor separation zone and shallow deep cold grey aquifer, and the crushing roadway was reinforced, thus the roadway construction problem was solved effectively.