Abstract: For the problems existing in the analogous combined automotive instruments, the intelligent digital instruments were developed for Beijing Jeep 2500 Sport Utility Vehicle based on Windows CE and the embedded system. The digital instruments consisted of high performance single chips and contact screen, and could display all vehicle operating parameters with alarm function. The embedded black box could provide the log data as the evidence for dealing with the traffic accidents. Besides keeping all the functions of the original instruments, the digital instruments can display the vehicle operating parameters, three filters replacement intervals, service and maintenance hints and driving log etc. The preliminary vehicle tests show that the system reaches the primary design specifications, and lay foundation for further development.