Abstract: The application and promotion of Internet of Things technology in risk control of underground mines will effectively promote the overall intelligent construction of the mining industry. There are many risk factors for underground mine safety. By revealing the connotation of the dual preventive mechanism construction of safety risk grading control and hidden danger investigation and treatment, with risk and hidden danger closed-loop control as the main line, covering various elements of risk control, supported by multiple intelligent perception and control hardware, integrating Internet of Things, advanced simulation and simulation prediction technology, developing a risk control platform to serve the safety management of mining enterprises can greatly improve the efficiency of safety management work and achieve comprehensive risk control of underground mines.