Proper　design　of　sidewall　is　one　way　to　improve　the　driving　environment　of　tunnels.　Based　on　the　cooperative-vehicle　infrastructure　system,　a　new　dynamic　landscape　design　pattern　for　tunnel　sidewall　is　proposed.　From　the　perspective　of　driving　behavior,　the　driving　simulator　is　used　to　build　tunnel　scenarios,　and　obtain　driving　behavior　data.　The　paired　sample　T-test　analysis　method　is　carried　out.　The　results　show　that　in　the　sidewall　dynamic　landscape　influence　zone,　the　driver　has　a　strong　desire　to　slow　down,　the　v(enter)　is　significantly　reduced,　the　proportion(v),　and　the　average　deceleration　are　significantly　increased;　the　lateral　position　of　the　vehicle　is　more　inclined　to　the　sidewall,　and　the　sidewall　effect　is　improved;　the　pupil　area　is　significantly　reduced,　and　the　driver＇s　anxiety,　and　uneasiness　caused　by　the　tunnel　semi-closed　environment　are　relieved.　©　2020　ASCE.