Abstract: In order to solve the problems that traditional graphic display system needs to maintain two versions of drawings at the same time, the use of third-party tools leads to abnormal data association, 3　d system modeling and high maintenance costs, based on open source GIS server GeoServer, client OpenLayers and other tools, a set of automatic process to quickly publish CAD into Web GIS service is designed. On the basis of graph theory, the motion trajectory is abstracted mathematically, and the topological structure diagram is dynamically generated according to the card reader arranged on the roadway diagram and the auxiliary lines drawn. The A* search algorithms with no heuristic function and with heuristic function were used to generate the motion trajectory respectively for the two localization methods of region localization and precise localization. A controlled smooth playback animation is achieved by proportionally inserting intermediate points between vertices. Through the above research, a set of low-cost, easy to maintain, can support both regional positioning and accurate positioning of the human movement track playback system.