Seismic　retrofit　priority　analysis　of　roads　and　bridges　is　essential　for　seismic　fortification　and　emergency　relief　preparation　of　highway　networks.　First,　four　types　of　network　component　importance　ranking　indices,　including　beweenness　centrality,　network　connective　reliability　sensitivity,　post-earthquake　travel　time　delay　and　normal　travel　time　delay　of　components　are　employed　in　this　paper　to　calculate　the　seismic　retrofit　importance　values　of　bridges　and　roads.　Second,　according　to　the　component　importance　values　of　each　individual　index,　the　integrated　importance　values　of　components　were　evaluated　by　a　multi-attribute　decision　method　based　on　TOPSIS.　Then,　the　seismic　retrofit　priorities　of　transportation　network　components　are　determined　by　the　integrated　importance　measures.　In　case　study,　the　characteristics　of　these　indices　are　analyzed　by　results　comparisons,　and　differences　between　the　component　importance　ranking　by　one　index　and　the　integrate　indices　are　also　explored.　The　results　of　the　case　study　show　that　the　integrated　importance　measure　has　combined　the　impacts　of　network　topology,　component　seismic　response,　component　transportation　capacity　and　OD　trips,　and　provides　the　fundaments　for　comprehensive　component　retrofit　ranking　of　the　highway　transportation　systems.　©　2018,　Science　Press.　All　right　reserved.