Abstract: As the mining industry develops towards unmanned and less manned, 5G technology features high rate, low latency, and wide connectivity, providing a solid network foundation for continuous convergence and innovation of intelligent mining applications. The geographical environment of open-pit mines is complex. Intelligent applications such as self-driving and remote control have high requirements on network quality. Therefore, the design and construction of 5G private networks are facing challenges. Based on the background of promoting the intelligent application of 5G long-distance mining technology in open-pit mines of Pangang, this paper first investigates and analyzes various intelligent applications in open-pit mines in detail, and carries on network modeling according to the mine business requirements and geographical distribution. Secondly, based on the characteristics of 5G private networks and network modeling results, the basic principles and processes of 5G private network design are formulated. Finally, a set of 5G wireless network coverage and capacity planning scheme for open-pit mines is proposed to guide the survey and site selection of 5G base stations. At the same time, the network planning results are simulated and verified to ensure that the network planning scheme can meet the actual requirements of mining operations. The research and practice have proved that the high-standard 5G private network based on precise planning is of great significance to accelerate the digital intelligence transformation of open-pit mines and achieve high-quality development.