Tibetan　Plateau　along　the　highway　terrain　is　with　better　conditions,　and　road　alignment　indicators　were　generally　great.　There　is　a　little　horizontal　interference　factor　of　the　road　that　is　not　at　urban　area.　The　driver　often　desired　for　higher　speeds.　In　the　high　altitude　environment,　the　driver　is　difficult　to　guarantee　attention,　increasing　the　severity　of　the　accident.　Accident　data　covers　the　State　Road　of　214　with　1,205　km　in　Qinghai.　Two　indicators　that　the　rate　of　accident　and　deaths　caused　by　speeding　measure　the　number　of　road　accidents　caused　by　speeding　and　accident　severity.　The　study　gathered　basic　data　by　field　investigation.　The　field　was　accident-prone　sections　that　were　identified　by　analyzing　accident　date.　To　understand　the　status　of　the　vehicle＇s　operation　status　in　Tibetan　Plateau,　the　author　analysis　the　accident-prone　sections＇　traffic　flow　conditions　through　the　proportion　of　speeding　vehicles　and　speeding　vehicles＇　speeding　amplitude.　For　special　plateau　environment,　this　text　proposed　illegal　speeding　preventive　measures,　based　on　setting　a　reasonable　speed　limit.　©　2016　ASCE.