Public　transportation　is　an　important　travel　way　of　urban　residents,　and　with　the　development　of　the　city　and　the　improvement　of　people＇s　living　standard,　its　service　concept　and　service　level　are　also　facing　a　huge　test.　Through　the　analysis　of　bus　passenger　service　requirements,　combined　with　the　construction　principles　of　index　systems,　and　based　on　the　definitive　structure　of　an　index　system,　this　study　investigated　volunteers　and　built　a　bus　satisfaction　evaluation　index　system　based　on　passengers＇　perception,　with　6　first-level　indicators　which　are　the　key　factors　influencing　passenger＇s　satisfaction:　timeliness,　security,　convenience,　comfort,　reliability,　and　economy.　Also,　there　are　an　additional　21　second-level　indicators,　and　77　third-level　indicators.　The　test　showed　reliability　and　validity　through　2998　copies　of　questionnaires　on　the　index　system,　and　found　the　Cronbach＇s　alpha　of　each　index　is　higher　than　0.7,　and　the　communalities　are　greater　than　0.5.　It　represents　that　the　bus　passenger　satisfaction　evaluation　index　system　is　highly　reliable　and　valid,　and　the　design　is　reasonable.　Research　provided　support　for　the　future　to　carry　out　quantitative　bus　satisfaction　evaluations,　improve　the　services　level,　and　the　satisfaction　of　urban　public　transport.　©　ASCE.