To the original mining Internet of things（IOT）system of Kailuan Group，the bandwidth resources of the optical fiber network have not been making full use of, the performance of switch equipment could not be gave full play to, and many times laying cable also caused the waste of wokers and materials, other equipments resources could not be made full use of，each subsystem database information could not be shared, the real intelligent，automated management has not reached，according to the construction target and technical route of the demonstration platform of Kailuan Group mine IOT, relying on the IOT and the artificial intelligence technology, based on the three-dimensional geographic information system，the mine IOT integrated information platform and the business subsystems which were the integrated monitoring, integrated digital communications, integrated positioning management, emergency actions, security early warning and emergency rescue command were constructed，so the seamless connection of underground  heterogeneous communication network and multi-network integration were realized.