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.