Abstract: In order to solve the problem of coal dust with poor dust inspection timeliness, artificial sampling and uncontinuous monitoring, the Internet of Things and cloud computing technology were introduced, and the cloud service platform for coal mine dust monitoring based on the Internet of Things was designed and implemented. Through integration of integrated dust monitoring intelligent terminals, real-time dust data collection and transmission, dust big data storage and management, and application services, the platform has formed a coal mine dust monitoring cloud service model, constructed a dust big data center, and proposed the application of dust monitoring cloud service. Through the application of service platform, multi-level supervision departments, enterprises and workers can monitor dust status in real time, and achieve the purpose of flat, off-site and real-time supervision, thereby improving the supervision service level of the occupational disease hazards in whole industry.