As　a　factor　of　the　technical　performance　evaluation　system　of　the　urban　traffic　networks,　accessibility　plays　an　important　role　in　the　overall　performance　evaluation　of　urban　traffic　networks　and　the　urban　traffic　planning.　This　paper　introduces　the　concept　of　the　urban　traffic　accessibility　and　makes　an　analytical　and　comparative　study　on　it＇s　five　traditional　models.　Meanwhile,　merits　and　demerits　of　these　five　traditional　models　in　theory　and　application　are　also　proposed　in　this　paper　as　well　as　the　new　measurement　models　of　the　urban　traffic　accessibility.　It　has　great　significance　for　urban　road　construction,　infrastructure　construction　and　technical　performance　evaluation　of　urban　traffic　networks.　©　2011　IEEE.