Bridge　accidents　occur　frequently,　so　new　system/idea　must　be　introduced　to　keep　bridge　safe,　and　then　to　protect　public　possessions　and　lives.　From　the　safety　science　point　of　view,　it＇s　pointed　out　that　safety　early-warning　system　of　urban　bridge　is　mainly　composed　of　four　factors:　human,　bridge,　environment　and　management,　based　on　the　state　of　the　art　of　bridge　safety.　Primary　configuration　of　safety　early-warning　management　system　for　urban　bridge　is　put　forward,　which　is　formed　from　four　subsystems:　human　factor　control　subsystem,　bridge　condition　monitoring　and　forecasting　subsystem,　bridge　accidents　and　emergency　disposal　subsystem　and　urban　bridge　safety　early-warning　management　subsystem.　It　makes　some　beneficial　attempt　for　a　more　serviceable　urban　bridge　management　system.　©2009　IEEE.