Abstract:Now, electronic map location information displays on embedded navigation terminal with low accuracy. Based on QT/Embedded and the Mitab Library, an embedded GIS navigation electronic map system is designed. The system uses Qt to develop graphics user interface. Geometry and attribute data of electronic map in MIF format is obtained through Mitab library. The extracted map data is processed using coordinates conversion algorithm. Finally the electronic map accurately and clearly displayed on the LCD screen. The experiment in embedded Linux platform indicates that the electronic map has functions such as zooming and roaming, and visualized more accurately. The system can be applied for the tourist, road planning and vehicle navigation.