As　an　important　part　of　urban　public　transport,　bus　service　quality　is　an　important　factor　affecting　the　choice　of　passenger　travel　mode.　This　paper　constructs　a　set　of　satisfaction　evaluation　indicator　systems　from　the　perspective　of　passenger　perception,　covering　the　whole　travel　process.　It　is　composed　of　6　first-level　indexes　(timeliness,　safety,　convenience,　comfort,　reliability　and　economy)　and　21　second-level　indexes.　Considering　the　scale　of　bus　service　in　Beijing,　this　research　carried　out　a　stratified　sampling　on　100　bus　lines　and　collected　3012　field　questionnaire　surveys.　The　basic　information　of　the　bus　routes　investigated,　demographic　questions　and　their　opinions　of　the　satisfaction　of　the　bus　service　were　all　recorded　in　the　questionnaire.　After　testing　the　reliability　and　validity　of　the　indicator　system,　the　paper　proposes　a　satisfaction　evaluation　model　weighted　by　the　related　coefficient.　The　results　show　that　overall　satisfaction　score　is　78.2　and　the　proportion　of　bus　passengers　who　are　satisfied　with　the　bus　service　nearly　70%.　Multivariate　analysis　of　variance　methods　were　employed　to　evaluate　the　satisfaction　influencing　factors.　Conclusions　can　be　drawn　that　the　satisfaction　score　of　timeliness　is　lowest,　which　is　mainly　influenced　by　three　factors:　the　passenger＇s　age,　travel　purpose　and　time.　The　research　provides　positive　contributions　toward　normalizing　performance　evaluation　for　public　transportation　and　enhancing　the　sustainable　development　of　bus.