The　methods　for　adjusting　a　single　bus　line　includes　adding　the　bus　line,　deleting　the　bus　line,　shortening　the　bus　line,　lengthening　the　bus　line　and　relocating　some　stops　of　the　bus　line.　This　paper　presents　a　multi-level　evaluation　system,　which　can　capture　various　aspects　of　concerns　in　the　bus　line　planning　process,　including　the　equilibrium　of　supply-demand　for　passengers,　the　equilibrium　of　supply-demand　for　the　public　transport　facility,　the　rationality　of　geometry　for　the　bus　line,　and　co-harmony　among　the　bus　lines.　The　proposed　method　offers　the　weights　for　multiple　evaluation　criteria　and　multiple　indicators　for　each　evaluation　criteria　using　the　Delphi　method.　Whether　the　adjusting　scheme　is　rational　for　implementation　or　not　is　derived　from　the　result　of　fuzzy　comprehensive　evaluation　(FCE).　A　case　study　about　shortening　a　bus　line　in　Beijing　is　provided　to　illustrate　the　proposed　model　and　assist　planners　in　the　best　understanding.　©　2011　ASCE.