Nonstructural　components　(NSCs)　contribute　about　80%-90%　of　the　construction　investment　in　a　modern　public　building.　The　post-earthquake　safety　and　normal　operation　of　NSCs　are　necessary　to　achieve　performance-based　design　and　resilient　buildings.　The　piping　system　is　one　of　the　most　essential　nonstructural　systems　to　preserve　the　post-earthquake　functionality　of　public　buildings.　To　accurately　evaluate　the　seismic　performance　and　vulnerability　of　piping　systems　in　buildings,　a　component-level　seismic　fragility　database　is　urgently　to　be　developed.　System　composition,　failure　modes　of　piping　systems,　and　induced　consequences　during　previous　earthquakes　are　introduced　first　in　this　article.　Then　a　concise　description　of　component-level　fragility　methodology　suggested　by　the　Applied　Technology　Council　is　presented.　Seismic　fragility　database　of　piping　components　including　pipes,　piping　joints,　and　seismic　braces　through　quasi-static　tests　are　developed　based　on　the　fragility　analysis　method.　Experimental　results　from　available　literature　are　summarized　and　presented　in　the　form　of　seismic　fragility　curves.　Specific　hysteretic　curves　of　these　components　are　also　presented,　which　are　used　for　the　calibration　of　numerical　models.　In　addition,　the　future　research　directions　on　the　seismic　fragility　of　piping　components　are　summarized　and　prospected.　The　developed　component-level　seismic　fragility　database　can　be　used　to　help　understand　the　seismic　performance　and　post-earthquake　damage　states　of　the　piping　system.　Seismic　performance　assessment　and　seismic　fragility　analysis　of　modern　piping　systems　can　be　conducted　using　the　developed　database　and　numerical　simulation　method.