In order to give full play of big data on the safety production monitoring, To carry out the research on Hazard source safety monitoring service platform based on Internet of things. The platform based on the classification of major hazard sources, Safety parameter monitoring and control technology, Data standards for information collection and interaction, Management structure of supervisory system at all levels and Information sharing system framework. The platform has complete function, such as Basic information management, Dynamic monitoring, Big data analysis and Intelligent early warning. Constructing the supervision system of the four level linkage of the provincial city and county enterprise, collection and sharing of mass data of safety production, the law of accident happening rule can be summary by big data analysis model, realization monitoring and early warning by Man-machine collaboration and precision management of major hazard.