To　study　the　writing　sequence　of　road　character　marks,　experiment　scene　of　road　character　marks　writing　on　different　sequence　was　designed　using　UC-win/Road　scene　simulation　software　firstly.　And　then　both　non-driver　and　driver　were　required　to　perform　in　the　experiment.　Finally,　the　reasonable　road　character　marks　writing　sequence　was　put　forward.　The　results　indicate　that　when　the　number　of　road　characters　was　less　than　4,　drivers＇　expectation　was　positive　sequence.　Otherwise　drivers＇　expectation　was　inverse　sequence.　Road　character　marks　were　familiar　phases　and　most　drivers　tended　to　read　with　guess.　If　the　number　of　character　was　too　large,　it　could　be　divided　in　terms　of　phases.　In　the　end　every　phase　was　less　than　4　characters.　The　sequence　between　phases　was　inverse,　but　within　phase　was　positive.　©　Copyright.