Abstract: In order to meet the needs of railway data centers at all levels for indoor positioning, this paper designs an intelligent positioning system based on Neo4j graph database and Ultra Wideband (UWB) technology. The paper used theNeo4j graph database to model the data center, and implemented the indoor high-precision positioning of the data center through UWB technology. The system can realize the management and control of the security area of the computer room and the real-time monitoring of personnel, provide the optimal path for automatic operation and maintenance equipment such as the computer room patrol robot, improve the operation and maintenance level and efficiency of the railway data center, and provide technical support for the construction of a new generation of railway data center.