Abstract: With the acceleration of the intelligent transformation of coal mining industry,the remote power supply and liquid supply supporting technology for the intelligent working face of coal mines has become a key technology to enhance the production efficiency of mines and ensure operational safety. Based on the principle of remote power supply and liquid supply,we analyze the system function design,communication technology and protocol,monitoring system construction and locking protection mechanism in multiple dimensions,and construct a multi-objective optimization model by adopting the optimization theory,so as to study the optimal design and application of the complete sets of equipment for remote power supply and liquid supply. The results show that the selection of three BRW400/37. 5F emulsion pumping stations and the adoption of the “two-use and one-standby” mode,i. e.,two pumping stations working at the same time,and the other as a standby liquid supply mode,can meet the hydraulic demand of the working face; the key production equipment such as coal mining machine,scraper conveyor,transfer machine,and crusher adopts the high voltage of 3 300 V grade to supply liquid to the working face. For the key production equipment such as coal mining machine,scraper conveyor,transfer machine and crusher,a high voltage of 3 300 V is used for power supply,while the pumping station equipment is supplied with a more suitable voltage of 1 140 V,which takes into account the matching between the equipment operation demand and voltage level.