Abstract: Coal mine intelligentization is the new direction of coal production mode and productivity change and the core technical support for the high-quality development of coal industry.The development of coal intelligence depends on the efficient transmission and effective utilization of data.How to solve the problems of reliable access of multi-sensor equipment, high-speed transmission of large capacity data and low-latency control of intelligent terminals has become one of the important basic problems faced by intelligent coal mining.In order to effectively promote the development of intelligent mining in coal mines, the shortcomings faced in the perception, decision-making and execution of coal mining at the initial stage were analyzed; the basic support technologies such as equipment reliability, information transmission and location services were studied, and the insufficiency and future development direction were pointed out.The importance of industrial control software in the intelligent mining of coal and national energy security were emphasized,and the viewpoint that industrial control software should achieve independent controll ability was put forward, and the application of new technologies should focus on accumulation and basic research.From the five aspects of top-level design, multi-network integration, network conversion, industrial control security and application scenarios, the key issues of 5G technology in the application of intelligent coal mining were analyzed, and it ispointed out that 5G is not to replace other networks, but can make various networks merge efficiently in operation, and at the same time, it is proposed that industrial control security will become an important part of 5G industrial applications.The suggestions of 5G platform construction are given: a micro-service architecture system is established, a function-oriented MEC edge computing mode is designed, and the network slicing for scenarios is planned, and attention is paid to the development 5G intelligent terminals, and research on application scenario algorithms and software development.Finally, it is proposed that the research and application of 5G technology should focus on the construction of technological ecology, and make good use of 5G as a tool to promote the implementation of artificial intelligence, big data, Internet of things, mixed reality and other technologies in the intelligent mining of coal mines.