Query　processing　of　XML　data　stream　is　one　of　the　hottest　issues　in　database　research　area.　However,　most　of　the　popular　methods　on　processing　the　XML　data　stream　can　not　handle　the　continuous　query　which　contains　spatial-temporal　queries.　While　the　tremendous　increase　in　the　use　of　road-side　sensors　in　transportation　application　area,　the　transportation　data　information　gathered　as　data　stream　are　pervasive.　Deploy　a　processor　specifically　for　continuous　query　on　dynamic　transportation　information　is　important.　In　this　paper,　we　present　a　continuous　query　method　on　processing　dynamic　transportation　information　modeled　by　XML/GML.　It　first　explores　how　the　spatial-temporal　aspect　of　dynamic　transportation　information　can　be　described　by　XML/GML　document,　and　then　proposes　a　simple　method　on　incorporating　the　spatial-temporal　functions　into　the　commercial　XQuery　engine.　Furthermore,　we　integrate　the　extended　XQuery　engine　with　the　SAX　processor　to　handle　the　spatial-temporal　queries　on　XML　data　stream.　How　the　method　can　be　used　in　querying　the　transportation　data　stream　is　also　given　at　the　end.