Abstract: Mine map data is the common important basic information in the normal production process of coal mines. On the basis of the existing research results and their defects of conversion methods for platforms of CAD and GIS, in view of WCF distributed framework and combined with the secondary development technology, a new idea is proposed about mine map data synchronization crossing graphic platform, and it is implemented in AutoCAD and ArcGIS. The principle and advantage of WCF technology is described, it can avoid the technical difficulties of traditional data conversion methods, and the specific methods and steps are introduced in detail that mine map data synchronization achieved in AutoCAD and ArcGIS.