Abstract: This paper briefly discusses the process and characteristics of coal mine accident rescue and analyzes the application of geographic information system(GIS) in coal main accident emergency rescue. Meanwhile, the technical architecture and key technologies of WebGIS-based coal mine accident rescue system are studied with emphasis, and a rescue system uniting emergency information management, emergency drills, emergency rescue and other operations is developed. Main functional modules and database construction about this system are introduced. This system, due to being based on WebGIS platform, can carry out design, development and construction and achieve the visualization of coal mine accident rescue through employing the spatial analysis capability of WebGIS, which provides scientific, comprehensive and accurate information for coal accident rescue.