Abstract: Introduces definition of Internet of Things and basic knowledge,analyzes actual situation and the goal of current mine information construction. In view of the problems of low information level and low intelligent degree in the existing coal mine production and management,internet of things technology has been used on coal mine informatization construction,and coal mine Internet of Things system has been constructed using current coal mine automatic equipment. The designs of hardware,software and network platform has also been given. The realization of informatization and automation of the whole production chain has laided a foundation for digitization coal mine. At last,point put that the key difficulty of coal mine informatization is informatization of production equipment.