In　order　to　achieve　energy　saving　and　low　carbon　tunnel　lighting　conditions　with　safety　considered,　the　driver　visual　request　characteristics　and　the　influence　of　tunnel　entrance　section　lighting　on　changing　rate　of　driver＇s　pupil　were　analyzed.　By　experiment　designing,　typical　vehicles　were　chosen　for　real　vehicle　testing　with　a　random　sample　of　24　drivers　on　tunnel　entrance　section　of　the　mountainous　expressway　and　tested　data　were　collected　and　analyzed.　The　changing　rate　of　pupil　was　selected　as　the　evaluation　index　to　evaluate　the　driving　safety　and　comfort　of　tunnel　entrance　section　lighting.　The　logistic　regression　model　of　changing　rate　of　driver＇s　pupil,　luminance　reduction　coefficient　and　vehicle　operation　speed　was　established.　The　changing　rate　of　pupil　which　could　be　used　to　describe　driving　tension　degree　and　changing　rate　of　pupil　(20%)　for　safety　and　comfort　threshold　the　safety　and　comfort　threshold　were　put　in　the　logistic　regression　model　for　verification.　The　results　show　that　the　safety　and　comfort　luminance　reduction　coefficient　of　tunnel　entrance　section　with　a　speed　limit　of　60　km·h-1　is　0.028　which　is　higher　than　current　standard　specification.　The　research　method　and　conclusions　can　provide　theory,　method　and　practice　value　for　the　expressway　tunnel　lighting　design　and　operation　management　at　the　tunnel　entrance　section.