Abstract: This paper uses the architecture of Intel XScale ARM CPU, the UP-TECHPXA270-S hardware as development platform, Windows CE 5.0 embedded operating system and the application program interface framework of qt-embedded-wince-opensource 4.5, designs and implements the intelligent GPS terminal. Firstly, an embedded operating system on the hardware platform is ported, including a variety of lowlevel drivers of the integrated hardware devices and peripheral devices; Secondly, the QT 4 .5 is used to designing applications and friendly GUI interface on the system; Finally, the mif and mid format files which is exported from MapInfo is read, and a navigation map based on the QT view framework is drawn, as well as wireless communication systems, fingerprint recognition, united alarm system and other functions are implemeted.

Key words: Windows CE 5.0, QT, GPS terminal navigation