Abstract: Coal or rock dynamical disasters can be forecasted by monitoring technology for electromagnetic radiation (EMR) in the deformation and fracture process of coal or rock. In this paper, the EMR (continuous) monitoring software based on Windows was developed using (VC++) 6.0. The communication between processes and threads, and real-time collection, display and analysis of multi-signal were realized using DDE and multithread technology. An advanced technology for coal or rock dynamical disasters forecasting was afforded.