Abstract: The new infrastructure for the new engine of economic development is the direction for the high-quality development of the future digital economy. And the digital twin technology based on 5G and F5G dual networks is the key to the construction of information infrastructure. The communication system of open-pit mine based on dual 5G network is proposed,three platforms of intelligent mining control,comprehensive production execution and three-dimensional visual control are constructed,and the mine safety monitoring and monitoring system is further integrated,so as to construct the construction architecture and system of intelligent open-pit mine. Taking Nannihu Molybdenum Mine as an example,the remote control and operation of intelligent equipment for open-pit mining are realized,which provides a new technical path for the construction of open-pit intelligent mine. The study results show that:① High-speed communication system is the guarantee of intelligent mine construction. The application of 5G and F5G dual communication network can realize real-time and efficient data transmission in the mine,which provides high-speed communication and data transmission channel for intelligent open-pit mine construction. ② With the construction of intelligent control and integrated production platform,a system characterized by digitization of mining environment and automation of mining equipment has been constructed,which realizes the intelligent process of mining design,planning,production and ore distribution,scheduling and decision-making. ③ Based on the three platforms,the intelligent mine architecture integrates the safety monitoring system,which forms the intelligent mode of open-pit mine safety production,and promotes the safe,efficient and intelligent construction of mine production.