Abstract: Based on cloud computing and big data technology, a design concept of operation and maintenance service platform for Guizhou coal mines intelligent system is proposed. The B/S structure is adopted to design the overall platform architecture including the acquisition layer, the support layer, the application layer, the user layer and the standard specification system and the safety operation and maintenance guarantee system. The platform subsystem, including monitoring and fault analysis, coal mine enterprise service, operation and maintenance dispatching order, operation and maintenance personnel material management, operation and maintenance organization service, information release, training service, operation and maintenance scheduling and command, operation and maintenance service supervision, operation and maintenance background management and handheld terminal APP, is built; the key technology and business process of platform construction are described in detail.