Abstract: The paper introduced development, basic concept, hierarchy structure, standards and typical application about Internet of things and indicated main problems existing in application of Internet of thing. Meanwhile, it proposed that the application model of surface Internet of things could not be copied in construction of Internet of thing of sensor mine, so as to avoid problems of new information island and subsystem island. The content of the paper is for understanding series papers of Internet of Things and Sensor Mine which will be contiuously published in journal Industry and Mine Automation.