Abstract: Aiming at the problem that the underground positioning of coal mine mostly depends on RFID positioning technology, and the upgrade cost of accurate positioning is high, a multi-positioning technology protocol fusion positioning system is proposed. While compatible with regional positioning, the system can realize the access of ZigBee technology and UWB technology positioning equipment, reduce the cost of precise positioning upgrade, realize the upgrading of coal mine personnel positioning technology, promote the fusion development of RFID regional positioning and ZigBee and UWB precise positioning technology, further improve the positioning accuracy of underground positioning system, and build a highly reliable and full coverage information system interactive network, this paper proposes a positioning system which can realize three positioning methods for data interaction, to meet the application requirements of different areas and different application scenarios.