Abstract: Miaogou Iron Mine is an open-pit mine that has been converted to underground mining. The task of the underground drainage system is arduous. To achieve remote start and stop as well as moni‐ toring of the underground drainage system，an intelligent transformation research was conducted on the mine's underground drainage system. The number of water pumps and power consumption time were ratio‐ nally allocated，and equipment fault pre-diagnosis and suggestions were provided in a timely manner to achieve the goal of efficient and energy-saving operation and staff reduction. The research has constructed an intelligent transformation system integrating system network architecture，automatic control system ar‐ chitecture，equipment layer architecture，upper-level monitoring software and water pump control process. The system can be programmed with diversified and adaptive pump start-up and drainage control process software to achieve various drainage methods such as normal and energy-saving modes of water pumps. By configuring sensors such as water level，pressure，flow rate of the water sump，vibration of the water pump and motor，temperature，and water diversion circuit，the status of the drainage system can be monitored in real time. The upper-level monitoring software is equipped with fault alarm and protection functions. Once the protection threshold is reached，the system automatically triggers the protection action and sends out an alarm signal. The control of the pumps in the underground drainage system all adopts remote one-click operation，endowing the entire system with diverse control methods and complete protection control func‐ tions. After the system is completed and put into use，the management of pump drainage is optimized by taking advantage of the difference in peak and off-peak electricity prices. After the automation construction is achieved，people can be reduced to 4，and it is estimated that the direct related labor costs can be saved by 320 000 yuan per year，reducing the risk of safety accidents caused by direct contact of personnel with equipment and human operation. The research results can provide guidance and reference for the intelli‐ gent transformation of underground drainage systems in mines under similar conditions.

Key words: underground mine, drainage system, intelligentization, unmanned