Abstract: The paper introduced related concepts, development overview and application of artificial intelligence technology in development of coal industry, and pointed out that at present, application of artificial intelligence technology in mine is only a combination of point and shallow degree, and deep fusion between artificial intelligence technology and a certain production or management system of mine is not realized. The development process of intelligent mine was summarized. Intelligent mine is considered as a deep fusion of artificial intelligence technology, big data technology, Internet of things technology and physical mine, it combined intelligent communication, intelligent control and intelligent computing technology to realize calculation and processing of digital mine, and construct digital twin mine, uses intelligent interactive evolution of digital twin mine and physical mine to achieve coal mine safety, high efficiency, green production control. A three-layer structure of intelligent mine which integrates artificial intelligence technology with mine was constructed, including equipment layer, intelligent layer and application layer. The application layer is at the highest level of the intelligent mine, in which the digital twin mine sub-layer is equivalent to "digital brain" to realize intelligent control of the highest level of the mine. The agent in the intelligent layer requires the subsystem not only to use artificial intelligence technology to process the data generated by the subsystem, but also to integrate intelligent computing, intelligent communication and intelligent control in the architecture. The development trend of intelligent mine construction was prospected: intelligent mine need to strengthen in-depth study of the artificial intelligence technology and the mine fusion, existing fault detection and diagnosis based on artificial intelligence and advanced intervention technology are applied to robot system, inspection robot integrated intelligent computing, intelligent communication, intelligent control will be one of the earliest underground intelligent agent; it is necessary to further strengthen the research on the modeling technology of complex giant system in the intelligent mine. Only by establishing the complex giant system model of the mine, the collaborative interaction between mining activities and the environment can be realized, and the accurate control of coal mining activities can be realized. The lack of complex giant system model will be an urgent problem to be solved in intelligent mine construction in the future.