Abstract: Using grid to solve the problems of data-intensiveness,computing-intensiveness,distribution of resources and heterogeneous in management of mine safety has become a key point for realizing high performance computing and then improving speed and accuracy of forecasting of coal mine safety.Based on the current communication networks of coal mine and referring to the OGSA system,the paper put forward and built up a system framework of coal mine safety application grid(CMSAG) from information acquirement,processing to application.Combining with the application equirement,the paper studied the key technologies of CMSAG system in details,such as resource management,resource scheduling,grid safety and so on.At last,it gave a material application demonstration.