Abstract: In order to realize the development goal of "mechanized replacement of personnel，automatic reduction of personnel，intelligent unmanned" in intelligent mines，an iron mine in Hebei Province adopts the unified standard underground mine gigabit industrial Ethernet ring network framework，and puts forward the idea of building a comprehensive automatic production information platform.Wired or wireless mine communication system，mine safety monitoring system，mine personnel positioning system and mine video monitoring system were constructed.A "four-in-one" sharing and sharing network integration platform that integrates data transmission，data processing，voice communication and video surveillance was built.Underground mining process information sharing and emergency linkage function was developed.After the application of the mine platform，the direct economic benefits of 3.99 million yuan and indirect economic benefits of 2.48 million yu，an are generated.The level of mine safety production management，meets the needs of modern intelligent mine construction was improved，and the process of realizing intelligent mine was expedited，which has high promotion significance and reference value.

Key words: four networks in one, industrial Ethernet ring network, integrated platform