The　occurrence　of　urban　gas　pipeline　network　accidents　will　pose　a　great　threat　to　people＇s　lives　and　property.　To　protect　the　lives　and　property　of　urban　residents　and　ensure　the　normal　operation　of　the　city,　this　paper　studied　the　influencing　factors　of　urban　gas　pipeline　network　accidents.　Firstly,　the　influencing　factors　of　urban　gas　pipeline　network　accidents　were　summarized　and　the　corresponding　fishbone　diagram　was　constructed　following　the　data　from　the　U.S.　Department　of　Transportation　Pipeline　and　Hazardous　Materials　Safety　Administration.　Secondly,　based　on　the　determined　accident　number　model,　the　corresponding　Bayesian　network　model　was　constructed　to　calculate　the　state　probability　and　the　sensitivity　value.　Finally,　according　to　the　relevant　information　of　urban　gas　pipeline　network　management,　combined　with　the　numerical　results　of　priori　probability　and　sensitivity,　an　emergency　linkage　system　based　on　the　urban　gas　pipeline　network　was　constructed.　The　calculation　results　of　state　probability　and　the　sensitivity　analysis　indicate　that　corrosion　is　the　most　influential　factor　contributing　to　accidents　in　the　urban　gas　pipeline　network.　The　temperature　change　has　the　greatest　influence　on　the　occurrence　of　urban　gas　pipeline　network　accidents.　Special　attention　should　be　paid　to　the　prevention　and　management　of　these　two　aspects　of　the　emergency　linkage　system.　Besides,　in　order　to　verify　the　effectiveness　of　the　system,　this　paper　also　uses　AHP　to　evaluate　the　application　of　the　system.　This　study　aims　to　provide　valuable　insights　for　enhancing　the　safety　management　of　urban　gas　pipeline　networks,　thereby　elevating　their　safety　management　standards.　©　2024　Elsevier　Ltd