Abstract: In order to solve problems of graphical interfaces of existing coal mine safety monitoring and control systems such as inconsistent standards, different representation effect, inability to realize system linkage and so on, a design scheme of coal mine multi-system fusion linkage platform based on "one map" was proposed according to requirements of Technology Schemes of Upgrading of Coal Mine Safety Monitoring and Control System. Structure of the platform and design of fusion linkage communication interface and GIS platform based on "one map" mode were introduced. The platform adopts data dissemination technology of WebGIS and data interchange technologies of WebService and OPC to intensively display data of different coal mine safety monitoring and control systems on the unified GIS platform, and realizes multi-system fusion linkage through relating to logical relationship among each system device. The platform can improve monitoring and control level and supervision efficiency of coal mine safety production.