Abstract: The emergency water retention bulkhead is an important mine water prevention and control measure to effectively control the impact range and degree of water damage, and ensure the safety of mechanical equipment and personnel in a short time. As the mining depth of the mine increases year by year, the potential water pressure that the emergency water retention bulkhead and its chamber need to bear is also increasing, the geological conditions are more complex, and the construction environment is also worse. Taking the Maoping lead-zinc mine in Northeast Yunnan Province as an example, on the basis of systematically evaluating the risk of water inrush in its 310 m middle section, this paper analyzes a number of key technical problems in the design and construction of the deep high-pressure emergency water retention bulkhead, mainly including the location of the water retention bulkhead chamber, the structural type of the chamber, the key structural parameters, the disturbance of excavation surrounding rock, water pressure response of the surrounding rocks and structure, and the type of bulkhead selection and remote control system. The design calculation results show that the 310 m level of the Maoping lead-zinc mine should adopt the inverted cone chamber structure, the split type bulkhead, and the design pressure is 6.4 MPa. The numerical simulation results show that after the excavation and pouring of the water retention bulkhead, the vertical and horizontal compressive and tensile stresses increase, and the plastic failure range of the surrounding rocks is about 0.38 m. The upstream side of the first inverted cone plug bears more than 80% of the total water pressure. Finally, the development trend of the deep high-pressure emergency water retention bulkhead system is proposed, mainly including the monitoring and evaluation of the long-term stability of the water retention bulkhead and the chamber structure, the design and construction technology under the deep complex geological conditions, the matching intelligent water disaster information identification and warning device. The results can provide technical reference and reference for the design and construction of an emergency water retention bulkhead.